thyro-

a combining form representing thyroid, in the formation of compound words:

thyrotropin.

Also, especially before a vowel, thyr-.

Related Words

thyrotome
thyrotomy
thyrotoxic
thyrotoxicosis
thyrotrophic
thyrotropin

thyro-
combining form
⇨ see thyr-

thyro-

/ˈθaɪrəʊ/

combining form

representing THYROID 表示“甲状腺（的）”, “甲状（的）”。

thyro-|ˈθaɪərəʊ|also (more correctly but less commonly) thyreo- |ˈθaɪəriːəʊ|,used as combining form of thyroid, in reference to the thyroid cartilage or the thyroid gland.1. In reference to the thyroid cartilage.thyro-arytenoid |-ærɪˈtiːnɔɪd| a. (rarely thyreo-), pertaining to or connecting the thyroid and arytenoid cartilages of the larynx; t. ligaments or thyro-arytenoid folds, the vocal cords; t. muscles, a pair of muscles which relax the vocal cords; also as n. = t. muscle. thyrochonˈdrotomy, surgical incision of the thyroid cartilage. thyro-ˈcricoid a., pertaining to or connecting the thyroid and cricoid cartilages; also as n. = thyro-cricoid muscle. thyro-criˈcotomy: see quot. thyro-epiglottic |-ɛpɪˈglɒtɪk| a. (also thyreo-), connecting the thyroid cartilage and the epiglottis; so thyro-epiglottidean |-ɛpɪglɒˈtɪdiːən| a. thyro-hyal |-ˈhaɪəl| a. = next; usually as n., applied to the greater cornu of the hyoid bone in mammals, or to each of the long horns of the same bone in birds. thyro-hyoid |-ˈhaɪɔɪd| a., pertaining to or connecting the thyroid cartilage and the hyoid bone; n. = thyro-hyoid muscle; so ˌthyro-hyˈoidean a. thyroˈpalatine a. (also thyreo-), connecting the thyroid cartilage and the palate: applied to part of the palato-pharyngeus muscle. thyropharyngean |-fəˈrɪndʒiːən| a. (also thyreo-), connecting the thyroid cartilage and the pharynx (see quot.). thyˈrotomy (also thyreo-) [Gr. τοµή cutting], incision or division of the thyroid cartilage.[1693tr. Blancard's Phys. Dict. (ed. 2), *Thyroarytænoides, a pair of Muscles that proceed from the Cartilage called Scutiformis, and extending themselves forward to the Sides of the Arytænoides..serve to close the opening of the Larynx.]1855Bain Senses & Int. ii. iv. §32 (1864) 314 The..vocal cords..are two bands..attached in front to..the depression between the wings of the thyroid cartilage, and behind to the arytenoid cartilages; from this connexion they are called thyro-arytenoid ligaments.1899Allbutt's Syst. Med. VI. 818 The laryngeal muscles chiefly involved have been the internal thyro-arytenoids.1911Dorland Med. Dict. (ed. 6), *Thyrochondrotomy.1901Benham in Proc. Zool. Soc. Lond. 2 Apr. 286 This longitudinal muscle is topographically a ‘*thyro-cricoid’.1899Syd. Soc. Lex., *Thyro-cricotomy, tracheotomy performed through the crico-thyroid membrane alone.1857Dunglison Med. Lex., *Thyreo-epiglottic... Sabatier and Santorini have given this name to the outer portion of the thyro-arytenoid muscle; because it passes from the thyroid cartilage to the anterior part of the epiglottis.1890Billings Nat. Med. Dict., Thyro-epiglottic ligament... Thyro-epiglottic muscle.1901Benham in Proc. Zool. Soc. Lond. 2 Apr. 286 The *thyro-epiglottidean muscle..is also a conspicuous constituent in the ventral region of the larynx.1854Owen Skel. & Teeth in Orr's Circ. Sc. I. Org. Nat. 209 The basihyal has..coalesced with the *thyrohyals to form a broad cartilaginous plate.1881Mivart Cat 134 The thyro-hyal muscle.1831R. Knox Cloquet's Anat. 82 The digastric and *thyro-hyoid muscles.1872Cohen Dis. Throat 134 The *thyreo-palatine portion of the muscle.1899Syd. Soc. Lex., Thyro-palatine.[1857Dunglison Med. Lex., *Thyro-pharyngeus, Thyreo-pharyngeus.]1860Mayne Expos. Lex., Thyreopharyngeus,..applied to the middle portion of the constrictor pharyngis inferior muscle: *thyreopharyngean.1880M. Mackenzie Dis. Throat & Nose I. 331 *Thyrotomy should never be undertaken until removal by the endolaryngeal method has been first attempted.1890Billings Nat. Med. Dict., Thyreotomy... Thyrotomy, section of the thyroid cartilage.1899Syd. Soc. Lex., Thyreotomy, division of the thyroid cartilage for exploratory purposes.2. In reference to the thyroid gland. (Often thyreo-.)thyro-antiˈtoxin, an antitoxin developed in thyroid poisoning; trade-name of a thyroid preparation used as a therapeutic. ˌthyrocalcitonin |-kælsɪˈtəʊnɪn| [calcitonin f. L. calx, calc(i)- lime + tonic a. and n. + -in¹], a polypeptide hormone secreted by the thyroid gland which reduces the levels of calcium in the blood; also called calcitonin. ˈthyrocele, a tumour of the thyroid gland; goitre. thyroˈcolloid, the colloid matter of the thyroid gland. thyroˈgenic, thyˈrogenous adjs.: see quot. 1909. thyro-, thyreoˈglobulin, the essential albuminous principle of the thyroid gland, an iodized principle, which forms, together with another albuminous substance belonging to the nucleo-proteins, the colloid substance of the gland. thyroˈglossal a., in t. duct, a duct of the embryo extending from the thyroid to the base of the tongue. thyro-ˈiodine, a substance containing iodine, obtained by decomposition of thyroglobulin, which has been thought to be the active principle of the gland: now more usually called iodoˈthyrin. thyroˈlingual a. = thyroglossal. thyroˈlytic a., destructive of thyroid tissue. ˌthyroparathyroiˈdectomy, excision of both the thyroid and the parathyroids; so ˌthyroparathyroiˈdectomize v. trans., -ˈdectomized ppl. a. † thyroˈproteid, thyroˈprotein, the specific protein of the thyroid gland. thyroˈtherapy, treatment of disease by a preparation of the thyroid glands of sheep. thyroˈtoxic a., thyroˈtoxin: see quots. 1909, 1911. ˈthyrotoxiˌcosis, a disorder in which there is an excessive amount of thyroid hormones in the blood. thyroˈtrop(h)ic a. (also † thyreo-) [-trophic, -tropic], applied to a hormone secreted by the pituitary which regulates the activity of the thyroid gland; hence thyroˈtrop(h)in, thyrotropic hormone; thyrotrop(h)in-releasing factor, hormone, a hormone secreted by the hypothalamus which stimulates the release of thyrotropin from the pituitary.1895Pall Mall G. 16 Dec. 1/3 Dr. Fränkel, of Vienna,..has named it provisionally *thyreo-antitoxin. [He] states..that it will be possible to administer it clinically without the risk of ptomaine poisoning.1899Allbutt's Syst. Med. VIII. 57 Fränkel has succeeded in separating a basic product from the thyroid (thyreo-antitoxin).1909Dorland Med. Dict. (ed. 5), Thyro-antitoxin.1963P. F. Hirsch et al. in Endocrinology LXXIII. 252/2 Whether or not the thyroid hypocalcemic agent that we have demonstrated is the same as..calcitonin..it is of considerable pharmacological interest. As a tentative name for the substance we propose ‘*thyrocalcitonin’.1974D. & M. Webster Compar. Vertebr. Morphol. xiii. 311 The parafollicular cells of the thyroid gland produce quite a different hormone, called calcitonin or thyrocalcitonin.1886Buck's Handbk. Med. Sc. III. 350/1 Goitre..*Thyreocele (P. Frank).1909Dorland Med. Dict. (ed. 5), Thyrocele, *Thyrocolloid.1887Buck's Handbk. Med. Sc. V. 143 *Thyrogenic.1909Dorland Med. Dict. (ed. 5), *Thyrogenous,..originating in the thyroid gland.1908Allbutt's Syst. Med. IV. i. 325 Other bodies..have been separated from the gland,..among these may be mentioned Oswald's iodine-free *thyreo-globulin.1911J. A. Mandel tr. Hammarsten's Text-bk. Physiol. Chem. (ed. 6) 356 It seems proven that the specifically active substance is..a protein substance: Notkin's thyreoproteid, Oswald's thyreoglobulin.1909Dorland Med. Dict. (ed. 5), *Thyroglossal duct.1896Daily News 30 Apr. 8/7 Professor Baumann and Dr. Roos..find that the active principle [of the thyroid gland] is a substance named ‘*Thyro-iodin’.1897[see thyroid B. 2].1903Cushing Text-bk. Pharmacology 715 Iodothyrin was at first named thyroiodin, but this was liable to be confused with thyreoidin, a term used to indicate the simple extract of the gland.1896Allbutt's Syst. Med. I. 206 The *thyro⁓lingual duct.1889Buck's Handbk. Med. Sc., App. 539 *Thyrolytic.1956Nature 21 Jan. 138/1 Six animals were adrenalectomized..: the remaining six were *thyroparathyroidectomized.1932Amer. Jrnl. Physiol. C. 262 (heading) Heterotopic bone formation in *thyroparathyroidectomized dogs.1976H. Campion et al. in B.E.C. Nordin Calcium, Phosphate & Mineral Metabolism xii. 466 Thyroparathyroidectomized (TPTX) rats had their serum phosphate levels manipulated by dietary means.1920Nature 9 Dec. 488/2 The effect of thyroid-feeding and of *thyroparathyroidectomy upon the pituitrin content of the posterior lobe of the pituitary.1956Ibid. 21 Jan. 138/1 The effect of thyro-parathyroidectomy on the blood changes induced by injected cortisone..has been studied.1899Allbutt's Syst. Med. VIII. 57 Notkin isolated a substance from the thyroid (*thyreo-protein).1911Dorland Med. Dict. (ed. 6) s.v., It is probably one of the functions of the thyroid to produce a ferment which neutralizes the toxic effect of an accumulation of thyroprotein in the body.1907Med. Record 5 Oct. 584 He regretted that *thyrotherapy had been neglected in the treatment of skin diseases.1904Nature 18 Feb. 375 *Thyrotoxic.1909Cent. Dict., Supp., Thyreotoxic.1909Dorland Med. Dict. (ed. 5), Thyrotoxic,..marked by toxic activity of the thyroid gland.1911Stedman Med. Dict. 887/1 *Thyrotoxicosis, exophthalmic goiter.1912Jrnl. Amer. Med. Assoc. 3 Aug. 328/1 A patient 23 years of age having an adenoma has a definite fixed chance of developing thyrotoxicosis during her thirty-seventh year.1977Lancet 27 Aug. 438/2 Simpson hypothesised an autoimmune basis for myasthenia gravis on account of its association with disorders thought to have an autoimmune ætiology—such as..thyrotoxicosis.1911Dorland Med. Dict. (ed. 6), *Thyrotoxin, a cytotoxin specific for thyroid tissue.1930Crew & Wiesner in Brit. Med. Jrnl. 26 Apr. 777/1 (heading) On the existence of a fourth hormone, *thyreotropic in nature, of the anterior pituitary.1957New Biol. XXIII. 117 The pituitary gland exerts some control over the thyroid gland, as it secretes a ‘thyrotropic’ hormone.1965Lee & Knowles Animal Hormones ii. 21 Adrenocorticotrophic hormone..and thyrotrophic hormone..are also secreted by the adenohypophysis.1944Hackh's Chem. Dict. (ed. 3) 856/2 *Thyrotrophin.1952New Biol. XIII. 65 Activity of the thyroid is maintained by the stimulus of a hormone, thyrotropin.1959[see TRF s.v. T 6].1968[see TRH s.v. T 6].1976Nature 8 Apr. 480/2 The α subunit of HCG..is nearly identical to the α subunits of thyroid-stimulating hormone (thyrotropin)..and luteinising hormone.1980Brit. Med. Jrnl. 29 Mar. 895/1 Two patients..had impaired responses of serum thyroid stimulating hormone to thyrotrophin releasing hormone.

thyro- /ˈθʌɪrəʊ/ combining form. Also (now rare or obsolete) thyreo- /ˈθʌɪrɪəʊ/. M19.

ORIGIN: from thyroid: see -o-.

Anatomy & Medicine. Of, pertaining to, or connected with (a) the thyroid gland; (b) the thyroid cartilage.

DERIVATIVE thyro-aryˈtenoid adjective pertaining to or connecting the thyroid and arytenoid cartilages of the larynx; thyro-arytenoid folds, thyro-arytenoid ligaments, the vocal cords; thyro-arytenoid muscles, a pair of muscles which relax the vocal cords: M19.
thyrocalciˈtonin noun = calcitonin M20.
thyrocele noun swelling of the thyroid gland L19.
thyroˈglobulin noun a globular protein from which thyroid hormones are synthesized E20.
thyroˈhyoid adjective pertaining to or connecting the thyroid cartilage and the hyoid bone; esp. designating ligaments forming part of the larynx, and a muscle that raises it: M19.
thyˈrotomy noun (a) (an instance of) incision of the thyroid cartilage; (b) (an instance of) incision of the thyroid gland: L19.
thyroˈtoxic adjective pertaining to or affected by (severe) thyrotoxicosis E20.
thyrotoxiˈcosis noun a disorder involving overactivity of the thyroid gland E20.

thyro-
— see thyr-

thyro-

Prefix

medicine thyroid

Derived terms

English words prefixed with thyro-

thyrotoxic

thyrotoxicity

词汇	thyro-
词根词缀	AHD Collins Dictionary.com MWCD NewOxfordEC OED SOED Webster Wiktionary thyro- 或 thyr- pref.（前缀） Thyroid: 甲状腺的： thyroxine. 甲状腺素语源 From thyroid 源自 thyroid thyro- or (before a vowel) thyr- combining form thyroid ⇒ thyrotoxicosis ⇒ thyrotropin thyro- 1 a combining form representing thyroid, in the formation of compound words: thyrotropin. Also, especially before a vowel, thyr-. Related Words thyrotome thyrotomy thyrotoxic thyrotoxicosis thyrotrophic thyrotropin thyro- combining form ⇨ see thyr- thyro- /ˈθaɪrəʊ/ combining form representing THYROID 表示“甲状腺（的）”, “甲状（的）”。 thyro-\|ˈθaɪərəʊ\|also (more correctly but less commonly) thyreo- \|ˈθaɪəriːəʊ\|,used as combining form of thyroid, in reference to the thyroid cartilage or the thyroid gland.1. In reference to the thyroid cartilage.thyro-arytenoid \|-ærɪˈtiːnɔɪd\| a. (rarely thyreo-), pertaining to or connecting the thyroid and arytenoid cartilages of the larynx; *t. ligaments* or *thyro-arytenoid folds, the vocal cords; t. muscles, a pair of muscles which relax the vocal cords; also as n. = t. muscle. thyrochonˈdrotomy, surgical incision of the thyroid cartilage. thyro-ˈcricoid* a., pertaining to or connecting the thyroid and cricoid cartilages; also as n. = thyro-cricoid muscle. thyro-criˈcotomy: see quot. thyro-epiglottic \|-ɛpɪˈglɒtɪk\| a. (also thyreo-), connecting the thyroid cartilage and the epiglottis; so thyro-epiglottidean \|-ɛpɪglɒˈtɪdiːən\| a. thyro-hyal \|-ˈhaɪəl\| a. = next; usually as n., applied to the greater cornu of the hyoid bone in mammals, or to each of the long horns of the same bone in birds. thyro-hyoid \|-ˈhaɪɔɪd\| a., pertaining to or connecting the thyroid cartilage and the hyoid bone; n. = thyro-hyoid muscle; so ˌthyro-hyˈoidean a. thyroˈpalatine a. (also thyreo-), connecting the thyroid cartilage and the palate: applied to part of the palato-pharyngeus muscle. thyropharyngean \|-fəˈrɪndʒiːən\| a. (also thyreo-), connecting the thyroid cartilage and the pharynx (see quot.). thyˈrotomy (also thyreo-) [Gr. τοµή cutting], incision or division of the thyroid cartilage.[1693tr. Blancard's Phys. Dict. (ed. 2), Thyroarytænoides, a pair of Muscles that proceed from the Cartilage called Scutiformis, and extending themselves forward to the Sides of the Arytænoides..serve to close the opening of the Larynx.]1855Bain Senses & Int.* ii. iv. §32 (1864) 314 The..vocal cords..are two bands..attached in front to..the depression between the wings of the thyroid cartilage, and behind to the arytenoid cartilages; from this connexion they are called thyro-arytenoid ligaments.1899Allbutt's Syst. Med. VI. 818 The laryngeal muscles chiefly involved have been the internal thyro-arytenoids.1911Dorland Med. Dict. (ed. 6), Thyrochondrotomy.1901Benham in Proc. Zool. Soc. Lond.* 2 Apr. 286 This longitudinal muscle is topographically a ‘thyro-cricoid’.1899Syd. Soc. Lex., Thyro-cricotomy, tracheotomy performed through the crico-thyroid membrane alone.1857Dunglison Med. Lex., Thyreo-epiglottic... Sabatier and Santorini have given this name to the outer portion of the thyro-arytenoid muscle; because it passes from the thyroid cartilage to the anterior part of the epiglottis.1890Billings Nat. Med. Dict., Thyro-epiglottic ligament... Thyro-epiglottic muscle.1901Benham in Proc. Zool. Soc. Lond.* 2 Apr. 286 The thyro-epiglottidean muscle..is also a conspicuous constituent in the ventral region of the larynx.1854Owen Skel. & Teeth* in Orr's Circ. Sc. I. Org. Nat. 209 The basihyal has..coalesced with the thyrohyals to form a broad cartilaginous plate.1881Mivart Cat* 134 The thyro-hyal muscle.1831R. Knox Cloquet's Anat. 82 The digastric and thyro-hyoid muscles.1872Cohen Dis. Throat* 134 The thyreo-palatine portion of the muscle.1899Syd. Soc. Lex., Thyro-palatine.[1857Dunglison Med. Lex., Thyro-pharyngeus, Thyreo-pharyngeus.]1860Mayne Expos. Lex., Thyreopharyngeus,..applied to the middle portion of the constrictor pharyngis inferior muscle: thyreopharyngean.1880M. Mackenzie Dis. Throat & Nose* I. 331 Thyrotomy should never be undertaken until removal by the endolaryngeal method has been first attempted.1890Billings Nat. Med. Dict., Thyreotomy... Thyrotomy, section of the thyroid cartilage.1899Syd. Soc. Lex., Thyreotomy, division of the thyroid cartilage for exploratory purposes.2. In reference to the thyroid gland. (Often thyreo-.)thyro-antiˈtoxin, an antitoxin developed in thyroid poisoning; trade-name of a thyroid preparation used as a therapeutic. ˌthyrocalcitonin* \|-kælsɪˈtəʊnɪn\| [calcitonin f. L. calx, calc(i)- lime + tonic a. and n. + -in¹], a polypeptide hormone secreted by the thyroid gland which reduces the levels of calcium in the blood; also called calcitonin. ˈthyrocele, a tumour of the thyroid gland; goitre. thyroˈcolloid, the colloid matter of the thyroid gland. thyroˈgenic, thyˈrogenous adjs.: see quot. 1909. thyro-, thyreoˈglobulin, the essential albuminous principle of the thyroid gland, an iodized principle, which forms, together with another albuminous substance belonging to the nucleo-proteins, the colloid substance of the gland. thyroˈglossal a., in *t. duct, a duct of the embryo extending from the thyroid to the base of the tongue. thyro-ˈiodine, a substance containing iodine, obtained by decomposition of thyroglobulin, which has been thought to be the active principle of the gland: now more usually called iodoˈthyrin. thyroˈlingual* a. = thyroglossal. thyroˈlytic a., destructive of thyroid tissue. ˌthyroparathyroiˈdectomy, excision of both the thyroid and the parathyroids; so ˌthyroparathyroiˈdectomize v. trans., -ˈdectomized ppl. a. † thyroˈproteid, thyroˈprotein, the specific protein of the thyroid gland. thyroˈtherapy, treatment of disease by a preparation of the thyroid glands of sheep. thyroˈtoxic a., thyroˈtoxin: see quots. 1909, 1911. ˈthyrotoxiˌcosis, a disorder in which there is an excessive amount of thyroid hormones in the blood. thyroˈtrop(h)ic a. (also † thyreo-) [-trophic, -tropic], applied to a hormone secreted by the pituitary which regulates the activity of the thyroid gland; hence thyroˈtrop(h)in, thyrotropic hormone; *thyrotrop(h)in-releasing factor, hormone, a hormone secreted by the hypothalamus which stimulates the release of thyrotropin from the pituitary.1895Pall Mall G. 16 Dec. 1/3 Dr. Fränkel, of Vienna,..has named it provisionally thyreo-antitoxin. [He] states..that it will be possible to administer it clinically without the risk of ptomaine poisoning.1899Allbutt's Syst. Med. VIII. 57 Fränkel has succeeded in separating a basic product from the thyroid (thyreo-antitoxin).1909Dorland Med. Dict. (ed. 5), Thyro-antitoxin.1963P. F. Hirsch et al. in Endocrinology LXXIII. 252/2 Whether or not the thyroid hypocalcemic agent that we have demonstrated is the same as..calcitonin..it is of considerable pharmacological interest. As a tentative name for the substance we propose ‘thyrocalcitonin’.1974D. & M. Webster Compar. Vertebr. Morphol.* xiii. 311 The parafollicular cells of the thyroid gland produce quite a different hormone, called calcitonin or thyrocalcitonin.1886Buck's Handbk. Med. Sc. III. 350/1 Goitre..Thyreocele (P. Frank).1909Dorland Med. Dict.* (ed. 5), Thyrocele, Thyrocolloid.1887Buck's Handbk. Med. Sc. V. 143 Thyrogenic.1909Dorland Med. Dict. (ed. 5), Thyrogenous,..originating in the thyroid gland.1908Allbutt's Syst. Med. IV. i. 325 Other bodies..have been separated from the gland,..among these may be mentioned Oswald's iodine-free thyreo-globulin.1911J. A. Mandel tr. Hammarsten's Text-bk. Physiol. Chem. (ed. 6) 356 It seems proven that the specifically active substance is..a protein substance: Notkin's thyreoproteid, Oswald's thyreoglobulin.1909Dorland Med. Dict. (ed. 5), Thyroglossal duct.1896Daily News 30 Apr. 8/7 Professor Baumann and Dr. Roos..find that the active principle [of the thyroid gland] is a substance named ‘Thyro-iodin’.1897[see thyroid B. 2].1903Cushing Text-bk. Pharmacology 715 Iodothyrin was at first named thyroiodin, but this was liable to be confused with thyreoidin, a term used to indicate the simple extract of the gland.1896Allbutt's Syst. Med. I. 206 The thyro⁓lingual duct.1889Buck's Handbk. Med. Sc., App. 539 Thyrolytic.1956Nature 21 Jan. 138/1 Six animals were adrenalectomized..: the remaining six were thyroparathyroidectomized.1932Amer. Jrnl. Physiol. C. 262 (heading) Heterotopic bone formation in thyroparathyroidectomized dogs.1976H. Campion et al. in B.E.C. Nordin Calcium, Phosphate & Mineral Metabolism xii. 466 Thyroparathyroidectomized (TPTX) rats had their serum phosphate levels manipulated by dietary means.1920Nature 9 Dec. 488/2 The effect of thyroid-feeding and of thyroparathyroidectomy upon the pituitrin content of the posterior lobe of the pituitary.1956Ibid. 21 Jan. 138/1 The effect of thyro-parathyroidectomy on the blood changes induced by injected cortisone..has been studied.1899Allbutt's Syst. Med. VIII. 57 Notkin isolated a substance from the thyroid (thyreo-protein).1911Dorland Med. Dict. (ed. 6) s.v., It is probably one of the functions of the thyroid to produce a ferment which neutralizes the toxic effect of an accumulation of thyroprotein in the body.1907Med. Record 5 Oct. 584 He regretted that thyrotherapy had been neglected in the treatment of skin diseases.1904Nature 18 Feb. 375 Thyrotoxic.1909Cent. Dict., Supp., Thyreotoxic.1909Dorland Med. Dict. (ed. 5), Thyrotoxic,..marked by toxic activity of the thyroid gland.1911Stedman Med. Dict. 887/1 *Thyrotoxicosis, exophthalmic goiter.1912Jrnl. Amer. Med. Assoc. 3 Aug. 328/1 A patient 23 years of age having an adenoma has a definite fixed chance of developing thyrotoxicosis during her thirty-seventh year.1977Lancet 27 Aug. 438/2 Simpson hypothesised an autoimmune basis for myasthenia gravis on account of its association with disorders thought to have an autoimmune ætiology—such as..thyrotoxicosis.1911Dorland Med. Dict. (ed. 6), Thyrotoxin, a cytotoxin specific for thyroid tissue.1930Crew & Wiesner in Brit. Med. Jrnl.* 26 Apr. 777/1 (heading) On the existence of a fourth hormone, thyreotropic in nature, of the anterior pituitary.1957New Biol. XXIII. 117 The pituitary gland exerts some control over the thyroid gland, as it secretes a ‘thyrotropic’ hormone.1965Lee & Knowles Animal Hormones* ii. 21 Adrenocorticotrophic hormone..and thyrotrophic hormone..are also secreted by the adenohypophysis.1944Hackh's Chem. Dict. (ed. 3) 856/2 Thyrotrophin.1952New Biol. XIII. 65 Activity of the thyroid is maintained by the stimulus of a hormone, thyrotropin.1959[see TRF* s.v. T 6].1968[see TRH s.v. T 6].1976Nature 8 Apr. 480/2 The α subunit of HCG..is nearly identical to the α subunits of thyroid-stimulating hormone (thyrotropin)..and luteinising hormone.1980Brit. Med. Jrnl. 29 Mar. 895/1 Two patients..had impaired responses of serum thyroid stimulating hormone to thyrotrophin releasing hormone. thyro- /ˈθʌɪrəʊ/ combining form. Also (now rare or obsolete) thyreo- /ˈθʌɪrɪəʊ/. M19. ORIGIN: from thyroid: see -o-. Anatomy & Medicine. Of, pertaining to, or connected with (a) the thyroid gland; (b) the thyroid cartilage. DERIVATIVE thyro-aryˈtenoid adjective pertaining to or connecting the thyroid and arytenoid cartilages of the larynx; thyro-arytenoid folds, thyro-arytenoid ligaments, the vocal cords; thyro-arytenoid muscles, a pair of muscles which relax the vocal cords: M19. thyrocalciˈtonin noun = calcitonin M20. thyrocele noun swelling of the thyroid gland L19. thyroˈglobulin noun a globular protein from which thyroid hormones are synthesized E20. thyroˈhyoid adjective pertaining to or connecting the thyroid cartilage and the hyoid bone; esp. designating ligaments forming part of the larynx, and a muscle that raises it: M19. thyˈrotomy noun (a) (an instance of) incision of the thyroid cartilage; (b) (an instance of) incision of the thyroid gland: L19. thyroˈtoxic adjective pertaining to or affected by (severe) thyrotoxicosis E20. thyrotoxiˈcosis noun a disorder involving overactivity of the thyroid gland E20. thyro- — see thyr- thyro- Prefix medicine thyroid Derived terms ► English words prefixed with thyro- thyrotoxic thyrotoxicity
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