[ toh-bruh-mahy-sin ]
/ ˌtoʊ brəˈmaɪ sɪn /
a highly toxic aminoglycoside antibiotic, C18H37N5O9, derived from Streptomyces tenebarius, used in the treatment of serious infections due to susceptible Gram-positive and Gram-negative organisms.
Origin of tobramycin
1970–75; perhaps (Strep)to(myces) (tene)bra(rias) + -mycin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019