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Webster 1913 Edition

Noun.

[

Oct

ane +

-yl

(Chem.)

A hypothetical hydrocarbon radical regarded as an essential residue of octane, and as entering into its derivatives;

as,

octyl

alcohol

octyl ‎(plural octyls)

(organic chemistry) Any of very many isomeric univalent hydrocarbon radicals, C₈H₁₇, formally derived from octane by the loss of a hydrogen atom

Hyphenation: oc‧tyl

From oct- +‎ -yl.

octyl n ‎(uncountable)