Gramicidin Definition
grămĭ-sīdn
noun
Any of a group of chemically related antibiotic polypeptides produced by a soil bacillus (Bacillus brevis) and used in medicines to treat various bacterial infections, esp. of the skin and eyes.
Webster's New World
A heterogeneous combination of six antibiotic compounds.
Wiktionary
Origin of Gramicidin
gram(-positive) –cid(e) –in
From American Heritage Dictionary of the English Language, 5th Edition
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