quadriphylle (kooa-), adj., (bot.) quadriphyllous.
quadrirème (kooa-), n.m., quadrireme.
quadrisyllabe (kooa-dri-sil-lab), n.m., quadrisyllable.
quadrivalve (kooa-), adj., (bot.) quadrivalve, quadrivalvular.
quadrumane (kooa-), n.m. and adj., (mam.) quadruman; quadrumanous.
quadrupède (kooa-), n.m. and adj., quadruped; four-footed; quadruped.
quadruple (kooa-), n.m. and adj., quadruple, fourfold; (Spanish coin) doubloon.
quadruple, n.f., Spanish gold coin worth 85 francs, about $16.50.
quadrupler (kooa-), v.a., to quadruple, to quadruplicate; to increase fourfold.
quadrupler, v.n., to be quadrupled; to increase fourfold.