methylcholanthrene
noun
meth·yl·cho·lan·threne ˌme-thəl-kə-ˈlan-ˌthrēn 
: a potent carcinogenic hydrocarbon C21H16
Word History
Etymology
methyl + cholic acid + anthracene
First Known Use
1933, in the meaning defined above
Medical Definition
methylcholanthrene
noun
meth·yl·cho·lan·threne -kə-ˈlan-ˌthrēn
: a potent carcinogenic hydrocarbon C21H16 obtained from certain bile acids and cholesterol as well as synthetically compare cholanthrene