ˌtīrəˈsīd ə n, -īˌdēn noun
or ty·ro·ci·din -īd ə n
( -s )
Etymology: tyro sine + -cide + -ine
: a crystalline antibiotic of a basic polypeptide nature produced by a soil bacillus ( Bacillus brevis ) and constituting the major component of tyrothricin