Cous'si-nĕt', n.

(kōōs'si-nĕt'), n. [Fr. coussinet, diminutive of coussin, cushion, q. v.] (Arch.) (a.) A stone placed on the impost of a pier for receiving the first stone of an arch. (b.) That part of the Ionic capital between the abacus and quarter round, which serves to form the volute. Gwilt.