Medical Dictionary

antibiotic an·ti·bi·ot·ic (ān'tĭ-bī-ŏt'ĭk, ān'tī-)
A substance, such as penicillin or streptomycin, produced by or derived from certain fungi, bacteria, and other organisms, that can destroy or inhibit the growth of other microorganisms. adj.

  1. Of or relating to antibiotics.

  2. Of or relating to antibiosis.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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