Definition of abietic acid
: a colorless crystalline tricyclic acid C19H29COOH with two double bonds that constitutes the major component of rosin, that is formed from certain other resin acids by heat and acid treatment, and that is used chiefly in making esters for plasticizers
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.
Join MWU now and get access to America’s largest dictionary, with:
- 300,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Origin and Etymology of abietic acid
borrowed from French (acide) abiétique, from abiet- (borrowed from Latin abiet-, abiēs “silver fir”) + -ique 1-ic
First Known Use: 1826
Seen and Heard
What made you want to look up abietic acid? Please tell us where you read or heard it (including the quote, if possible).