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单词 tetracycline
释义

tetracycline

noun

tet·​ra·​cy·​cline ˌte-trə-ˈsī-ˌklēn How to pronounce tetracycline (audio)
-klən
: a yellow crystalline broad-spectrum antibiotic C22H24N2O8 produced by streptomyces or synthetically
also : any of several chemically related antibiotics (such as doxycycline)

Did you know?

Most chemical names are made up of two or more Greek and Latin roots strung together. Thus, tetracycline, with its cycl- root from the Greek word for "circle", means "four-ringed"—that is, "consisting of four fused hydrocarbon rings". Antibiotics work against bacteria and other tiny organisms (but not viruses); tetracycline, which comes from a kind of soil bacteria, is one of the most used of the antibiotics. "Broad-spectrum" antibiotics work well on numerous organisms; thus, tetracycline has proved effective against acne, chlamydia, cholera, rickets, and various lung and eye infections, among many other conditions.

Example Sentences

Recent Examples on the Web There is at least one drug, tetracycline, that over time can break down into a substance that can damage the kidney. Dr. Keith Roach, oregonlive, 8 July 2022 This strain has a high-level of resistance to azithromycin and resistance to ceftriaxone, cefixime, cefotaxime, ciprofloxacin and tetracycline. Bruce Y. Lee, Forbes, 21 June 2022 Oxitec uses the antibiotic tetracycline to raise its bugs and mass produce them. Melody Petersenstaff Writer, Los Angeles Times, 8 Apr. 2022 Like steroids do for humans, antibiotics such as tetracycline can bulk some animals up more quickly. Washington Post, 7 Apr. 2022 Laboratory testing found that 20 of these cases were resistant to common antibiotics such as chloramphenicol, streptomycin, sulfamethoxazole and tetracycline. Sandee Lamotte, CNN, 25 Aug. 2021 Using genetic-engineering techniques, the company altered the male mosquitoes to pass down a gene that makes females need a dash of the antibiotic tetracycline to survive. Robert Lee Hotz, WSJ, 31 May 2021 In this case, male mosquitoes have been modified to carry a gene that makes their female progeny dependent on the antibiotic tetracycline—and thus fated to die in the wild. Donavyn Coffey, Scientific American, 14 May 2021 There, the insects might be exposed to tetracycline which is used to treat fruit trees and is found in human waste. Karen Weintraub, USA TODAY, 29 Apr. 2021 See More

Word History

Etymology

International Scientific Vocabulary tetracyclic having four fused hydrocarbon rings + -ine entry 2

First Known Use

1952, in the meaning defined above

Medical Definition

tetracycline

noun

tet·​ra·​cy·​cline ˌte-trə-ˈsī-ˌklēn How to pronounce tetracycline (audio) -klən How to pronounce tetracycline (audio)
: a yellow crystalline broad-spectrum antibiotic that is produced by a soil actinomycete of the genus Streptomyces (S. viridifaciens) or made synthetically and that is administered chiefly in the form of its hydrochloride C22H24N2O8·HCl
also : any of several chemically related antibiotics (as doxycycline)
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更新时间:2025/1/11 13:30:48