-ˌgōn noun
( -s )
Etymology: International Scientific Vocabulary puleg- (from New Latin pulegium, specific epithet of Mentha pulegium, from Latin puleium, pulegium pennyroyal) + -one
: a fragrant liquid terpenoid ketone C 10 H 16 O derived from menthenone that is the principal constituent of pennyroyal oil and yields menthol on hydrogenation