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词汇 chemo-
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chemo- 或 chemi- 或 chem-
pref.（前缀）
  1. Chemicals; chemical:
    化学品的；化学的：
    chemotherapy.
    化学疗法

语源
  1. From chemical
    源自 chemical
chemo- or chemi- or (before a vowel) chem-

combining form

indicating that chemicals or chemical reactions are involved
⇒ chemotherapy

Origin

New Latin, from Late Greek khēmeia; see alchemy

chemo-

Word Origin
1
a combining form with the meanings “chemical,” “chemically induced,” “chemistry,” used in the formation of compound words:
chemotherapy.
Also, especially before elements of Latin origin, chemi-.
Also, especially before a vowel, chem-.
Origin
chem-, extracted from chemical or chemistry + -o- or -i-

Related Words

  • chem-
  • chemi-
  • chemokinesis
  • chemonite
  • chemonucleolysis
  • chemopallidectomy
chemo-variant of chem- used especially before a consonant.
chemo-
combining form
⇨ see chem-
chemo-
/ˈkeməʊ/  
combining form
representing CHEMICAL
表示“（与）化学（有关）的”, “（与）化学反应（有关）的”。参见CHEMI-.
chemo- occas. ˈchemio-,|ˈkɛməʊ|used as combining form = chemical a., in chemo-kinesis |ˌkɛməʊkaɪˈniːsɪs| [Gr. κίνησις movement] Biol., a condition of increased activity of an organism, induced by the presence of a chemical substance; hence ˌchemokiˈnetic |-kaɪˈnɛtɪk| a.; chemoˈreflex, a response to a chemical change in the environment by a motor reaction; also as adj., pertaining to or designating a reflex action resulting from a chemical stimulus; ˈchemostat [Gr. στατ-ός standing, after thermostat], a device designed to provide an environment that can be regulated and kept stable over a long period, esp. one used for the continuous cultivation of micro-organisms in which the nutrient medium is continually replenished; chemoˈsterilant (see quot. 1964); chemosynthesis |kɛməʊˈsɪnθɪsɪs| [Gr. σύνθεσις composition], the formation of carbohydrates out of inorganic compounds by an organism in darkness or in the absence of sunlight, as distinguished from ‘photosynthesis’; hence chemosynˈthetic a. (Webster 1911).1900Amer. Jrnl. Physiol. Apr. 398 The organisms soon leave the area of operation of the chemical causing the reactions. This phenomenon Garry calls ‘chemokinesis’.1901G. N. Calkins Protozoa 299 If an effect is produced which is not directive, it is said to be chemokinetic.1902Pop. Sci. Monthly Mar. 463 [The] complicated activities of such highly developed organisms as ants and bees may be subsumed, with surprising completeness, under some such heading as the ‘chemoreflex’.1950Novick & Szilard in Science 15 Dec. 715/1 We have developed a device for keeping a bacterial population growing at a reduced rate over an indefinite period of time... This device..we shall refer to as the Chemostat.1967Guardian 7 Feb. 4/5 The chemostat was designed initially to provide a stable but controllably variable environment for the study of cell metabolism.1964New Scientist 22 Oct. 210/3 The use of chemosterilants—compounds which sterilise insects and make them unable to breed—has been a promising recent development in man's war against insect pests.1903W. H. Lang tr. Strasburger's Text-bk. Bot. 197 The necessary energy is here obtained not from photosynthesis but from the oxidation of ammonia into nitrous acid, and this into nitric acid (chemosynthesis).1904J. McCabe tr. Haeckel's Wonders of Life 222 Pfeffer has called this carbon-assimilation, on account of its purely chemical nature, ‘chemosynthesis’ in opposition to the ordinary photosynthesis by means of sun-light.1909R. J. H. Gibson Biol. vi. 48 In all probability the energy required is obtained by the oxidation of primary organic compounds, and possibly of protoplasm itself (chemosynthesis).1959Listener 5 Mar. 410/1 These are known as chemosynthetic autotrophs; in other words, bacteria that obtain their energy by oxidizing..inorganic chemicals. Add: ˌchemoautoˈtrophic a. Bot. [after G. Chemoautotrophie n. (E. G. Pringsheim 1932, in Naturwiss. XX. 479/1)], (of micro-organisms or their environment) obtaining the energy needed to sustain autotrophism by chemical means; deriving energy from the oxidation of inorganic compounds.1941Adv. Enzymol. I. 265 Pfeffer later coined the name chemosynthesis for this group of processes for which Pringsheim, more recently, has proposed the term *chemo-autotrophic.1981Sci. Amer. Oct. 109/1 Like the free-living bacteria at the vents, the symbiotic ones are chemoautotrophic: they sustain themselves on inorganic substances, and thereby they sustain the worm.so chemoˈautotroph, a chemoautotrophic organism.1943Physiol. Rev. XXIII. 347 Instead of carrying out a photosynthetic metabolism they now behave as *chemo-autotrophs.1982M. J. Dring Biol. Marine Plants ix. 174 The H2S which is released may support a small population of chemoautotrophs throughout the upper part of the sediments.ˌchemoautoˈtrophically adv., by chemoautotrophy, in a chemoautotrophic manner.1961Webster, *Chemoautotrophically.1979Nature 27 Sept. 256/1 Thiocapsa can be grown chemoautotrophically in the dark under oxygen.ˌchemoautoˈtrophism = *chemoautotrophy below.1943Physiol. Rev. XXIII. 340 It would, of course, be possible to re-define *chemo-autotrophism in such a manner that the above difficulty could be avoided.chemoˈautotrophy, chemoautotrophic nutrition.1951J. W. Foster in Werkman & Wilson Bacterial Physiol. 385 (heading) Energetics of *chemoautotrophy.1987Sci. Amer. Apr. 89/2 A high ratio of surface area to volume is ideal for the feeding strategies known as photoautotrophy and chemoautotrophy.ˌchemoprophyˈlaxis, the prevention of disease by the administration of drugs (esp. antibiotics).1949New Gould Med. Dict. 205/2 *Chemoprophylaxis, prevention of disease by the administration of chemical drugs, as sulfanilamide.1961Lancet 9 Sept. 589/2 For operative chemoprophylaxis surgeons commonly rely on streptomycin.1989Brit. Med. Jrnl. 27 May 1422/1 The two babies with reflux were receiving chemoprophylaxis, and neither had a urinary tract infection.hence ˌchemoprophyˈlactic a.1961Webster, *Chemoprophylactic.1975Nature 20 Mar. 169/1 Two trials have also been carried out in India using sulphones for their protective or chemoprophylactic effect by giving them to healthy people.
chemo-
before vowels chem-, word-forming element denoting "relation to chemical action or chemicals," from comb. form of chemical, adj., used to form scientific compound words from c.1900.
chemo- /ˈki:məʊ/ combining form of chemical adjective: see -o-. Cf. chemi-, chemico-.
 DERIVATIVE chemoaˈttractant noun (Physiology) a substance produced within the body which attracts motile cells of a particular type L20.
chemokine noun (Physiology) any of a group of cytokines whose major function is the attraction of white blood cells to sites of inflammation L20.
chemoprophyˈlactic adjective of, pertaining to, or involving chemoprophylaxis M20.
chemoprophyˈlaxis noun the prophylactic use of chemicals M20.
chemoreception noun the response of an organism to a chemical change in its environment E20.
chemoreceptor noun a sensory organ responsive to chemical stimuli E20.
chemostat noun a system or device in which the chemical composition is kept at a controlled level; esp. one for the culture of micro-organisms. in which the nutrient medium is continually replenished: M20.
chemoˈsynthesis noun the formation by living organisms of carbohydrates from inorganic compounds without the agency of light E20.
chemosynˈthetic adjective of, pertaining to, or involving chemosynthesis M20.
chemo-
combining form, chemical; by chemical reaction: Chemosynthesis = chemical synthesis. Also, chem- before vowels.
[< chemical]
che·mo-
\in pronunciations below, | ̷ ̷ ̷ ̷ . |kēmō or -mə or sometimes |ke-\
— see chem-

chemo-

Prefix

  1. Relating to or using chemicals or chemistry.

Derived terms

English words prefixed with chemo-


See also

  • chemi-
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    更新时间：2025/1/25 9:59:31