Octyl n. : A hypothetical hydrocarbon radical regarded as an essential residue of octane, and as entering into its derivatives; as, octyl alcohol.

Example:
Why is an Octyl akyl polymer chain less polar than an ethyl or butyl chain?

Taxonomy
Octyl acetate, free encyclopedia, octyl, ethanoate, acetate, n-octyl, octyl alcohol, search, Identifiers, g/mol, Appearance, liquid, kg/m³, Hazards, orange flavoring, H2O, dimensional diagram, Unsourced.

Defination from the web:
Octyl acetate, or octyl ethanoate, is an ester that is formed from octanol (octyl alcohol) and acetic acid. It is the basis for artificial orange flavoring. ... Octyl acetate can be synthesized by a condensation reaction: C8H17OH + CH3COOH C10H20O2 + H2O. A three-dimensional diagram ...