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Any of several cycloalkane hydrocarbons having the general formula CnH2n and found in various petroleums.
naph·then′ic (-thĕn′ĭk) adj.
(Chemistry) any of a class of cycloalkanes, mainly derivatives of cyclopentane, found in petroleum
[C20: from naphtha + -ene]
naph•thene(ˈnæf θin, ˈnæp-)
any of a group of hydrocarbon ring compounds of the general formula CnH2n, found in certain petroleums.
naph•the′nic (-ˈθi nɪk, -ˈθɛn ɪk) adj.