Definition of triptane
: a liquid hydrocarbon (CH3)3CCH(CH3)2 that is one of the highest antiknock motor fuels known and hence is a valuable blending agent especially for aviation gasolines to increase their power; 2,2,3-trimethyl-butane
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!
Origin and Etymology of triptane
trimethyl + p (alteration of b in butane) + butane
Seen and Heard
What made you want to look up triptane? Please tell us where you read or heard it (including the quote, if possible).