coussinet

Cous"si*net` (ks"s-nt`), n. Etym: [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.

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