safrole
noun
saf·role ˈsaf-ˌrōl 
: a poisonous oily cyclic ether C10H10O2 that is the principal component of sassafras oil and is used chiefly in perfumery
Word History
Etymology
International Scientific Vocabulary, from sassafras + -ole
First Known Use
1869, in the meaning defined above
Medical Definition
safrole
noun
saf·role ˈsaf-ˌrōl
variants also safrol
-ˌrōl -ˌrȯl
-ˌrȯl : a poisonous oily cyclic carcinogenic ether C10H10O2 that is the principal component of sassafras oil and occurs also in other essential oils (as camphor oil) and that is used chiefly in perfumery