IPA: //ˈɒk.tɪl//
KK: /ˈɑkˌtɪl/
A type of hydrocarbon radical that is derived from octane, consisting of eight carbon atoms and seventeen hydrogen atoms, often used in organic chemistry.
The chemist used an octyl group in the synthesis of the new compound.
**Octyl** → It is formed from "octo-" (from Greek *okto*, meaning eight) and "-yl" (a suffix used in chemistry to denote a radical or group derived from a compound). The word "octyl" refers to a group or radical derived from an eight-carbon alkane, specifically octane.
Think of 'eight' ('octo-') to remember that 'octyl' refers to a chemical group related to eight carbon atoms.