英语词汇rachio-的发音释义、词根词缀、结构分析、同源词、词频及词根记忆法-英语词根词缀词典

rachi-, rachio-|ˈreɪkɪ, ˈreɪkɪəʊ|comb. forms of rachis, used in some (chiefly recent) terms of Anat. and Path. relating to the spine or vertebral column. (Also written rha-: see below and rachis, etc.) rachiˈagra (see rachisagra). rachiˈalgia [Gr. -αλγία pain], pain in or due to the spine; painter's colic; hence rachiˈalgic a. rachialˈgitis [see -itis], inflammation of the spinal chord, myelitis (Dunglison 1893). rachiˈglossate a. [Gr. γλῶσσα tongue], of certain mollusca: having a median row of teeth on the odontophore (Cent. Dict. 1891). ˈrachiodont a. [Gr. ὀδοντ- tooth], of a genus of serpents (Rachiodon): having vertebral processes which penetrate the gullet and serve as teeth (Cassell's Encycl. Dict. 1887). ˌrachi(o)paˈralysis, paralysis of the spine (Craig 1848). ˈrachiotome [Gr. -τόµος cutting], a dissecting instrument for cutting open the spinal canal (Knight Dict. Mech. 1875). rachiˈotomy [Gr. -τοµία cutting], the operation of cutting into the spinal canal (Dunglison 1893). raˈchischisis |-skɪsɪs| [Gr. σχίσις cleavage] = myelocele 1 b. ˈrachitome, (a) = rachiotome (Ogilvie 1882); (b) Palæont., a labyrinthodont belonging to the suborder Rhachitomi; usu. written rh-. raˈchitomous a., (a) of vertebræ: segmented, as in batrachians and other low vertebrate types; (b) having segmented vertebræ; usu. written rh-.1811Hooper Med. Dict., *Rachialgia.1822–34Good's Stud. Med. (ed. 4) II. 472 This disease was..a modification of rhachialgia.Ibid. I. 172 Without any *rhachialgic pains.1890Billings Med. Dict. 427/2 *Rachischisis, congenital posterior fissure of spinal column, a form of spina bifida.1900Boston Med. & Surg. Jrnl. CXLIII. 458/2 (heading) A case of rhachischisis.1901T. M. Rotch Pediatrics (ed. 3) v. 301 Rhachischisis is one of the principal forms of congenital defects of the spine. It is characterized by a deficiency of the vertebral arches either complete or partial.1963K. M. Laurence in A. P. Norman Congenital Abnormalities in Infancy ii. 26 Myelomeningocoeles, myelocytocoeles, hydromyelocoeles, and syringomyelocoeles, localized rachischisis and myelocoeles are all essentially the same lesion, and best regarded as myelocoeles.1966Wright & Symmers Systemic Path. II. xxxiv. 1234/2 Spina Bifida... The severest and rarest form is rachischisis, in which the spinal canal is open to the exterior, either for a short distance or over its whole length.1947Bull. Museum Compar. Zoöl. Harvard Coll. XCIX. 103 In the skull roof [of Edops], a primitive character is the presence of a distinct intertemporal element, lost in characteristic *rhachitomes.1964Jrnl. Animal Morphol. & Physiol. XI. 7 The temnospondyls, forming the ‘main line’ of labyrinthodont evolution, began with Carboniferous types of primitive structure but with rhachitomous vertebrae, evolved in the later Carboniferous and Permian into typical rhachitomes, and eventually gave rise to stereospondylous forms.1971E. C. Olson Vertebr. Paleozool. iv. iv. 591 In the Lower Carboniferous limestone of Scotland..is the Gilmerton ironstone from which a number of labyrinthodonts have come:..Loxomma, a rhachitome; and..an anthracosaur, Crassigyrinus.1882E. D. Cope in Amer. Naturalist XVI. 334 (heading) The *rhachitomous Stegocephali.1884― in Ibid. XVIII. 30 Rachitomous vertebræ from the same locality are of larger size and resemble those of Eryops.1887E. D. Cope Orig. Fittest 317 The reptiles, in their primary representative order,..have been probably derived from the rhachitomous Batrachia.1947Bull. Museum Compar. Zoöl. Harvard Coll. XCIX. 102 The skull pattern is typically rhachitomous in key features, such as the firm fusion of cheeks and table.1964[see rachitome above].1971E. C. Olson Vertebr. Paleozool. iv. iv. 591 Although rhachitomous amphibians occur early, in the upper Mississippian, the limbs from this age have not been worked out.

rachio-

also rhachio-, before vowels rachi-, word-forming element meaning "spinal," from Greek rhakhis "spine, ridge, rib of a leaf." Compare Greek rhakhos "thorn hedge."

rachio- combining form var. of rachi-.

rachio-
— see rachi-

词汇	rachio-
词根词缀	OED Online Etymology Dictionary SOED Webster rachi-, rachio-\|ˈreɪkɪ, ˈreɪkɪəʊ\|comb. forms of rachis, used in some (chiefly recent) terms of Anat. and Path. relating to the spine or vertebral column. (Also written rha-: see below and rachis, etc.) rachiˈagra (see rachisagra). rachiˈalgia [Gr. -αλγία pain], pain in or due to the spine; painter's colic; hence rachiˈalgic a. rachialˈgitis [see -itis], inflammation of the spinal chord, myelitis (Dunglison 1893). rachiˈglossate a. [Gr. γλῶσσα tongue], of certain mollusca: having a median row of teeth on the odontophore (Cent. Dict. 1891). ˈrachiodont a. [Gr. ὀδοντ- tooth], of a genus of serpents (Rachiodon): having vertebral processes which penetrate the gullet and serve as teeth (Cassell's Encycl. Dict. 1887). ˌrachi(o)paˈralysis, paralysis of the spine (Craig 1848). ˈrachiotome [Gr. -τόµος cutting], a dissecting instrument for cutting open the spinal canal (Knight Dict. Mech. 1875). rachiˈotomy [Gr. -τοµία cutting], the operation of cutting into the spinal canal (Dunglison 1893). raˈchischisis \|-skɪsɪs\| [Gr. σχίσις cleavage] = myelocele 1 b. ˈrachitome, (a) = rachiotome (Ogilvie 1882); (b) Palæont., a labyrinthodont belonging to the suborder Rhachitomi; usu. written rh-. raˈchitomous a., (a) of vertebræ: segmented, as in batrachians and other low vertebrate types; (b) having segmented vertebræ; usu. written rh-.1811Hooper Med. Dict., Rachialgia.1822–34Good's Stud. Med. (ed. 4) II. 472 This disease was..a modification of rhachialgia.Ibid. I. 172 Without any rhachialgic pains.1890Billings Med. Dict. 427/2 Rachischisis, congenital posterior fissure of spinal column, a form of spina bifida.1900Boston Med. & Surg. Jrnl. CXLIII. 458/2 (heading) A case of rhachischisis.1901T. M. Rotch Pediatrics* (ed. 3) v. 301 Rhachischisis is one of the principal forms of congenital defects of the spine. It is characterized by a deficiency of the vertebral arches either complete or partial.1963K. M. Laurence in A. P. Norman Congenital Abnormalities in Infancy ii. 26 Myelomeningocoeles, myelocytocoeles, hydromyelocoeles, and syringomyelocoeles, localized rachischisis and myelocoeles are all essentially the same lesion, and best regarded as myelocoeles.1966Wright & Symmers Systemic Path. II. xxxiv. 1234/2 Spina Bifida... The severest and rarest form is rachischisis, in which the spinal canal is open to the exterior, either for a short distance or over its whole length.1947Bull. Museum Compar. Zoöl. Harvard Coll. XCIX. 103 In the skull roof [of Edops], a primitive character is the presence of a distinct intertemporal element, lost in characteristic rhachitomes.1964Jrnl. Animal Morphol. & Physiol. XI. 7 The temnospondyls, forming the ‘main line’ of labyrinthodont evolution, began with Carboniferous types of primitive structure but with rhachitomous vertebrae, evolved in the later Carboniferous and Permian into typical rhachitomes, and eventually gave rise to stereospondylous forms.1971E. C. Olson Vertebr. Paleozool.* iv. iv. 591 In the Lower Carboniferous limestone of Scotland..is the Gilmerton ironstone from which a number of labyrinthodonts have come:..Loxomma, a rhachitome; and..an anthracosaur, Crassigyrinus.1882E. D. Cope in Amer. Naturalist XVI. 334 (heading) The rhachitomous Stegocephali.1884― in Ibid.* XVIII. 30 Rachitomous vertebræ from the same locality are of larger size and resemble those of Eryops.1887E. D. Cope Orig. Fittest 317 The reptiles, in their primary representative order,..have been probably derived from the rhachitomous Batrachia.1947Bull. Museum Compar. Zoöl. Harvard Coll. XCIX. 102 The skull pattern is typically rhachitomous in key features, such as the firm fusion of cheeks and table.1964[see rachitome above].1971E. C. Olson Vertebr. Paleozool. iv. iv. 591 Although rhachitomous amphibians occur early, in the upper Mississippian, the limbs from this age have not been worked out. rachio- also rhachio-, before vowels rachi-, word-forming element meaning "spinal," from Greek rhakhis "spine, ridge, rib of a leaf." Compare Greek rhakhos "thorn hedge." rachio- combining form var. of rachi-. rachio- — see rachi-
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