naphthene

POS

Noun

HYPHEN

naph=thene

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CIDE DICTIONARY

naphthene, n.

A peculiar hydrocarbon fraction occuring as an ingredient of some crude petroleums, mostly mixtures of derivatives of the five- and six-membered saturated cyclic alkanes, cyclopentane and cyclohexane, having the general formula C_nH_2n. [1913 Webster]

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OXFORD DICTIONARY

naphthene, n. any of a group of cycloalkanes.

Etymology

NAPHTHA + -ENE

For further exploring for "naphthene" in Webster Dictionary Online

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