"Olefine" is a word in ENGLISH

olefine ENGLISH
Definition:

Olefiant gas, or ethylene; hence, by extension, any one of
the series of unsaturated hydrocarbons of which ethylene is a type. See
Ethylene.

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elayl ENGLISH

Olefiant gas or ethylene; -- so called by Berzelius from its forming an oil combining with chlorine. [Written also elayle.] …

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ethene ENGLISH

Ethylene; olefiant gas.

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ethylene ENGLISH

A colorless, gaseous hydrocarbon, C2H4, forming an important ingredient of illuminating gas, and also obtained by the action of concentrated …

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olefiant ENGLISH

Forming or producing an oil; specifically, designating a colorless gaseous hydrocarbon called ethylene.

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