Category:Roccellic

Roc*cel"lic, a. Etym: [f. roccellique, fr. roccelle archil, it. & nl. Roccella, fr. It. rocca a rock, because archil grows on rock.] (chem.)

Defn: pertaining to, or designating, a dibasic acid of the oxalic Series found in archil (roccella tinctoria, etc.), and other lichens, And extracted as a white crystalline substance c17h32o4.