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noun
ChemistryThe hydrocarbon radical —CH₃ (CH₂)₇ CH=CH(CH₂)₇ CH₂, derived from oleic acid; cis -9-octadecen-1-oyl. Usually attributive.
Recorded earliest in oleoyl alcohol.
Origin
Early 20th century; earliest use found in Journal of the Chemical Society. From ole- + -oyl.
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