/men"theen/ , n. Chem.
1. any of several isomeric, monocyclic terpenes having the formula C 10 H 18 .
2. a colorless, liquid terpene, C 10 H 18 , found in certain essential oils and prepared from menthol.
[ 1830-40; Menth ( a ) (see MINT 1 ) + -ENE ]