Dictionary
gram•i•ci•din
Pronunciation: (gram"u-sīd'n), [key]—
n. Pharm.
a crystalline, water-insoluble antibiotic obtained from tyrothrycin by extraction, used chiefly in treating local infections caused by Gram-positive organisms. Also called
gramicidin D. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.