Entry 1 sense Webster, 1913 Camphene /(kăm"fēn [or] kăm*fēn")/ · Cam·phene · IPA 01 n. One of a series of substances C10H16, resembling camphor, regarded as modified terpenes. 1. One of a series of substances C10H16, resembling camphor, regarded as modified terpenes.(Chem.)