释义 |
tet·ra·cy·cline \ˌte.trəˈsīˌklīn, -_klə̇n\ noun (-s) Etymology: International Scientific Vocabulary tetracyclic + -ine 1. : a yellow crystalline broad-spectrum antibiotic C22H24N2O8 derived from an octa-hydro-naphthacene, produced by a soil actinomycete (Streptomyces viridifaciens), or prepared from chlortetracycline by catalytic reduction, and administered usually in the form of its hydrochloride 2. : any of various derivatives of tetracycline (as chlortetracycline or oxytetracycline) |