'Coussinet' definitions:

Definition of 'Coussinet'

From: GCIDE

Coussinet \Cous"si*net`\ (k??s"s?-n?t`), n. [F., dim. of coussin cushion. See Cushionet.] (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 forms the volute. --Gwilt. [1913 Webster]