platy 1
/play"tee/ , adj., platier, platiest .
(of an igneous rock) split into thin, flat sheets, often resembling strata, as a result of uneven cooling.
[ 1525-35; PLATE 1 + -Y 1 ]
platy 2
/plat"ee/ , n. , pl. ( esp. collectively ) platy , ( esp. referring to two or more kinds or species ) platys, platies .
platyfish.
[ 1930-35; by shortening of NL Platypoecilus genus name, equiv. to platy- PLATY- + -poecilus poikílos mottled ]