I. ˈplā-tē adjective
Date: 1533
: resembling a plate ; also : consisting of plates or flaky layers — used chiefly of soil or mineral formations
II. ˈpla-tē noun
( plural platy or plat·ys or plat·ies )
Etymology: New Latin Platypoecilus, former genus name of the fish
Date: 1931
: either of two tropical American freshwater live-bearers ( Xiphophorus maculatus and X. variatus ) that have a highly variable often brilliant color and are popular aquarium fishes — called also platy·fish -ˌfish