Squinance \Squin"ance\ (skw[i^]n"ans), Squinancy \Squin"an*cy\ (-an*s[y^]), n. [F. esquinancie, OF. squinance, esquinance. See {Quinsy}.] 1. (Med.) The quinsy. See {Quinsy}. [Obs.] [1913 Webster] 2. (Bot.) A European perennial herb ({Asperula cynanchica}) with narrowly linear whorled leaves; -- formerly thought to cure the quinsy. Also called {quincewort}. [1913 Webster] {Squinancy berries}, black currants; -- so called because used to cure the quinsy. --Dr. Prior. [1913 Webster]