The American Heritage® Dictionary of the English Language, 4th Edition
n. Any of a group of broad-spectrum antibiotics, such as streptomycin, derived from species of Streptomyces or Micromonospora bacteria and used to treat infections caused by gram-negative bacteria.
n. A molecule composed of a sugar group and an amino group, in some cases functioning as an antibiotic.
Word Usage
"In the present study, we describe a new blaIMP-1-carrying integron that contains a new aminoglycoside resistance gene and its dissemination among genetically unrelated clinical isolates recovered from a Brazilian hospital."