cytochalasin
noun
cy·to·cha·la·sin ˌsī-tō-kə-ˈlā-sən 
: any of a group of metabolites isolated from fungi (especially Helminthosporium dematioideum) that inhibit various cell processes
Word History
Etymology
cyt- + Greek chalasis slackening + English -in entry 1
First Known Use
1966, in the meaning defined above
Medical Definition
cytochalasin
noun
cy·to·cha·la·sin ˌsīt-ō-kə-ˈlā-sən
: any of a group of metabolites isolated from fungi (especially Helminthosporium dematioideum) that inhibit various cell processes