Medical Definition of streptomycin
: an antibiotic organic base C21H39N7O12 that is produced by a soil actinomycete of the genus Streptomyces (S. griseus), is active against bacteria, and is used especially in the treatment of infections (as tuberculosis) by gram-negative bacteria
Seen and Heard
What made you want to look up streptomycin? Please tell us where you read or heard it (including the quote, if possible).