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Merriam-Webster's Collegiate Dictionary an·ti·bi·ot·ic
\\ˌan-tē-bī-ˈä-tik, -ˌtī-; -bē-ˈä-\\ adjective DATE 1894 1. tending to prevent, inhibit, or destroy life 2. of or relating to antibiotics or to antibiosis • an·ti·bi·ot·i·cal·ly \\-ti-k(ə-)lē\\ adverb
noun DATE 1943 : a substance produced by or a semisynthetic substance derived from a microorganism and able in dilute solution to inhibit or kill another microorganism English Etymology antibiotic 1894 (adj.), "destructive to micro-organisms," from Fr.antibiotique (c.1889), from anti- + Gk. biotikos "fit for life." As a noun, first recorded 1941, in works of physician Selman Waksman, discoverer of streptomycin. Oxford Advanced Learner's Dictionary-牛津双解-OALD7 antibiotic anti·bi·ot·ic / 7Antibai5Ctik; NAmE -5B:tik / noun[usually pl.] a substance, for example penicillin , that can destroy or prevent the growth of bacteria and cure infections 抗菌素；抗生素(如青霉素): The doctor put her on antibiotics (= told her to take them). 医生要她服用抗生素。 • anti·bi·ot·ic adj.: an antibiotic drug 抗菌素药 effective antibiotic treatment 有效的抗生素治疗 Oxford Collocations Dictionary for Students of English antibiotic noun ADJ. effective QUANT. course, dose The doctor put her on a course of antibiotics. VERB + ANTIBIOTIC be on, take Did you remember to take your antibiotics? | give sb, prescribe, put sb on, treat sth with The doctor prescribed antibiotics. Webster's Third New International Dictionary, Unabridged an·ti·bi·ot·ic I. \|antēˌbī|äd.ik, -ätik, -ēk, -tə̇-, -_bē-, |aan-, |ain-; -ˌtīˌbī-\ adjective Etymology: probably from New Latin antibioticus, from anti- (I) + Greek biōtikos of life — more at biotic 1. : tending to prevent, inhibit, or destroy life 2. : of or relating to antibiosis 3. : of, with, or relating to an antibiotic • an·ti·bi·ot·i·cal·ly \-ə̇k(ə)lē, -li\ adverb II. noun (-s) : a substance produced by a microorganism (as a bacterium or a fungus) and in dilute solution having the capacity to inhibit the growth of or kill another microorganism (as a disease germ) |
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