abietic acid
noun
ab·i·et·ic acid
¦abē¦etik-
: 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
Word History
Etymology
borrowed from French (acide) abiétique, from abiet- (borrowed from Latin abiet-, abiēs "silver fir") + -ique -ic entry 1
First Known Use
1826, in the meaning defined above