Plait (?), n. [OE. playte, OF. pleit, L. plicatum, plicitum, p. p. of plicare to fold, akin to plectere to plait. See Ply, and cf. Plat to weave, Pleat, Plight fold.] 1. A flat fold; a doubling, as of cloth; a pleat; as, a box plait.
The plaits and foldings of the drapery. Addison.
2. A braid, as of hair or straw; a plat.
Polish plait. (Med.) Same as Plica.