abietic acid
nounUS /ˌæb.iˈɛd.ɪk ˈæ.sɪd/
Etymology From Latin abiet, abies (“silver fir”) + English -ic (“having the character of”), + acid.
1
Chemistry, Natural sciences, Organic chemistry, Physical sciences A yellowish resin acid isolated from rosin and used in varnishes and esters for plasticizers; C₁₉H₂₉COOH.