antibiotic meaning

[ ˌæntibai'ɔtik ] Pronunciation:   "antibiotic" in a sentence
Adjective: antibiotic  `antibI'ótik
  1. Of or relating to antibiotic drugs
Noun: antibiotic  `antibI'ótik
  1. A chemical substance derivable from a mould or bacterium that can kill microorganisms and cure bacterial infections
    "when antibiotics were first discovered they were called wonder drugs"
    - antibiotic drug

Derived forms: antibiotics

Type of: antibacterial, antibacterial drug, bactericide

Encyclopedia: Antibiotic

n : a substance produced by or a semisynthetic substance derived from a microorganism and able in dilute solution to inhibit or kill another microorganism
1 : tending to prevent, inhibit, or destroy life
2 : of or relating to antibiotics or to antibiosis — an·ti·bi·ot·i·cal·ly adv


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  1. earthworms may produce antibiotic substances.
  2. antibiotics are immunosuppressive.
  3. antibiotics produce a selective change in flora.
  4. antibiotics favor the growth of resistant mutants.
  5. prophylactic antibiotics are definitely contraindicated.

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