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gramicidin

American  
[gram-uh-sahyd-n] / ˌgræm əˈsaɪd n /

noun

Pharmacology.

  1. a crystalline, water-insoluble antibiotic obtained from tyrothrycin by extraction, used chiefly in treating local infections caused by Gram-positive organisms.

gramicidin British  
/ ˌɡræmɪˈsaɪdɪn /

noun

  1. an antibiotic used in treating local Gram-positive bacterial infections: obtained from the soil bacterium Bacillus brevis

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of gramicidin

First recorded in 1935–40; Gram-(positive) + -i- + -cide + -in 2

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.