rhizocarpic
/ˌrʌɪzə(ʊ)ˈkɑːpɪk/adjective
Chemistry rhizocarpic acid noun a yellow crystalline acid obtained from lichens of the genus Rhizocarpon.
Origin
Early 19th century (in an earlier sense). From rhizo- + ancient Greek καρπός fruit + -ic. In sense 1 after French rhizocarpique; compare rhizocarpous.