octyl

noun

oc·​tyl

ˈäktᵊl

plural -s

: an alkyl radical C₈H₁₇ derived from an octane: such as

a

: the normal radical CH₃(CH₂)₆CH₂−

b

: the radical CH₃(CH₂)₃CH(C₂H₅)CH₂− having a branched chain; 2-ethyl-hexyl

Word History

Etymology

International Scientific Vocabulary octane + -yl

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

• More than 250,000 words that aren't in our free dictionary
• Expanded definitions, etymologies, and usage notes
• Advanced search features
• Ad free!