N0014300 (năf′thēn′, năp′-)n. Any of several cycloalkane hydrocarbons having the general formula CnH2n and found in various petroleums.[naphth(a) + -ene.]naph·then′ic(-thĕn′ĭk) adj.
naphthenic
(ˈnæfθiːnɪk) adj (Chemistry) of, relating to or derived from naphtheneEncyclopediaSeenaphthene