Squinance Squin"ance, Squinancy Squin"an*cy, n. [F. esquinancie, OF. squinance, esquinance. See Quinsy.] 1. (Med.) The quinsy. See Quinsy. [Obs.] 2. (Bot.) A European perennial herb (Asperula cynanchica) with narrowly linear whorled leaves; -- formerly thought to cure the quinsy. Also called quincewort. Squinancy berries, black currants; -- so called because used to cure the quinsy. --Dr. Prior.