ˌ ̷ ̷ ̷ ̷(ˌ) ̷ ̷ˈmīs ə n noun
( -s )
Etymology: New Latin Actinomyces + English -in
: any of various red or yellow-red mostly toxic crystalline polypeptide antibiotics isolated from various soil bacteria (especially Streptomyces antibioticus ) — usually followed by a distinguishing letter
actinomycin C is one of the less toxic members of the group