ty·lo·sin (tī'lə-sĭn') n. An antibiotic, C46H77NO17, obtained from the actinomycete Streptomyces fradiae and used to treat respiratory infections in animals.
Main Entry: ty·lo·sin Pronunciation: 'tI-l&-s&n Function: noun : an antibacterial antibioticC45H77NO17 from an actinomycete of the genus Streptomyces (S. fradiae) used in veterinary medicine and as a feed additive