an antibiotic, CHNO, made synthetically or obtained from an actinomycete (Streptomyces spectabilis) and used esp. in treating cases of gonorrhea that are resistant to penicillin
See spectinomycin in American Heritage Dictionary 4
(spĕkˌtə-nō-mīˈsĭn)
noun
A broad-spectrum antibiotic, C14H24N2O7, obtained from a species of gram-negative bacteria (Streptomyces spectabilis) or produced synthetically and used especially in the treatment of penicillin-resistant gonorrhea.