Medical Dictionary

cotinine

noun co·tin·ine \ˈkōt-ən-ˌēn, -ˌīn\

Medical Definition of COTININE

:  an alkaloid C10H12N2O that is the principal metabolite of nicotine and is widely used as an indicator of recent exposure to nicotine

Browse

How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears