heptyne

noun

hep·​tyne

variants or less commonly heptine

ˈhepˌtīn

plural -s

: any of three isomeric straight-chain liquid hydrocarbons C₇H₁₂ of the acetylene series

Word History

Etymology

International Scientific Vocabulary hepta- + -yne or -ine

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!