naphthenic hydrocarbon
Technical term used in organic chemistry and petroleum engineering for saturated cyclic hydrocarbons.
Naphthenic hydrocarbons are abundant in crude oil.
Refers to paraffinic (alkane) hydrocarbons, which are straight-chain or branched saturated hydrocarbons, in contrast to the cyclic structure of naphthenic hydrocarbons.
Aromatic hydrocarbons contain benzene rings and are unsaturated, unlike the saturated cyclic naphthenic hydrocarbons.
Compound of ナフテン (naphthene, from English 'naphthene') + 系 (system, series) + 炭化水素 (hydrocarbon).