Quad*ren"ni*al (?), a. [L. quadriennium a space of four years; quattuor
four + annus year; cf. L. quadriennis. See Quadrate, and Annual.] 1.
Comprising four years; as, a quadrennial period.
2. Occurring once in four years, or at the end of every four years; as,
quadrennial games.
Quad*ren"ni*al*ly, adv. Once in four years.
||Quad*ren"ni*um (?), n. [NL. See Quadrennial.] A space or period of
||four years.
Quad"ri- (?). [L., from quattuor four. See Four.] A combining form
meaning four, four times, fourfold; as, quadricapsular, having four
capsules.
Quad`ri*ba"sic (?), a. [Quadri- + basic.] (Chem.) Same as Tetrabasic.