Chro-äs'ta-çē, n. pl.
n. pl. [Gr. χροά, χροιά, color, and ἀστακός, crab.] A class of pellucid gems, comprehending all those of variable colors, as viewed in different lights.
n. pl. [Gr. χροά, χροιά, color, and ἀστακός, crab.] A class of pellucid gems, comprehending all those of variable colors, as viewed in different lights.