avermectin

 
Pronunciation: /ˌeɪvəˈmɛktɪn/

noun

  • any of a group of compounds with strong anthelmintic properties, isolated from a strain of bacteria. Chemically, they are macrocyclic lactones with a disaccharide ring attached.

Origin:

1970s: from modern Latin (Streptomyces) averm(itilis), the name of the source actinomycete, + ect- (of unknown origin) + -in1