from The American Heritage® Dictionary of the English Language, 4th Edition
- suffix A substance derived from a bacterium in the order Actinomycetales: neomycin.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- suffix Applied to aminoglycosides derived from bacteria of the genus Micromonospora.
myc(o)- (so called because the bacteria from which the substances were first derived were originally mistaken for fungi) + -in.(American Heritage® Dictionary of the English Language, Fourth Edition)