| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024pen•i•cil•lin /ˌpɛnəˈsɪlɪn/USA pronunciation n. [uncountable]- Drugsan antibiotic produced from molds.
WordReference Random House Unabridged Dictionary of American English © 2024pen•i•cil•lin (pen′ə sil′in),USA pronunciation n. [Pharm.]- Drugsany of several antibiotics of low toxicity, produced naturally by molds of the genus Penicillium and also semisynthetically, having a bactericidal action on many susceptible Gram-positive or Gram-negative cocci and bacilli, some also being effective against certain spirochetes.
- penicill(ium) + -in2 1925–30
Collins Concise English Dictionary © HarperCollins Publishers:: penicillin /ˌpɛnɪˈsɪlɪn/ n - any of a group of antibiotics with powerful bactericidal action, used to treat many types of infections, including pneumonia, gonorrhoea, and infections caused by streptococci and staphylococci: originally obtained from the fungus Penicillium, esp P. notatum. Formula: R-C9H11N2O4S where R is one of several side chains
Etymology: 20th Century: from penicillium |