The Collaborative International Dictionary of English. 2000.
Roccella tinctoria — Roccellic Roc*cel lic, a. [F. roccellique, fr. roccelle archil, It. & NL. roccella, fr. It. rocca a rock, because archil grows on rock.] (Chem.) Pertaining to, or designating, a dibasic acid of the oxalic series found in archil ({Roccella… … The Collaborative International Dictionary of English
Roccellic — Roc*cel lic, a. [F. roccellique, fr. roccelle archil, It. & NL. roccella, fr. It. rocca a rock, because archil grows on rock.] (Chem.) Pertaining to, or designating, a dibasic acid of the oxalic series found in archil ({Roccella tinctoria}, etc.) … The Collaborative International Dictionary of English
roccellic acid — rōˈchelik noun Etymology: roccellic International Scientific Vocabulary roccell (from New Latin Roccella) + ic : a crystalline dicarboxylic acid C17H32O4 derived from succinic acid and found in various lichens (as Roccella tinctoria … Useful english dictionary
