|ȯ(r)sə|linik- noun
Etymology: orsellinic International Scientific Vocabulary orsellin- (from orselle + -in, chemical suffix) + -ic
: a crystalline acid C 6 H 2 (OH) 2 (CH 3 )COOH found chiefly in combination in certain lichens; 4,6-dihydroxy- ortho -toluic acid — called also ortho-orsellinic acid ; compare lecanoric acid