| Calyx | n.; pl. E. Calyxes L. Calyces [ L. calyx, -ycis, fr. Gr. ka`lyx husk, shell, calyx, from the root of kaly`ptein to cover, conceal. Cf. Chalice Helmet. ] 1. (Bot.) The covering of a flower. See Flower. [ 1913 Webster ] ☞ The calyx is usually green and foliaceous, but becomes delicate and petaloid in such flowers as the anemone and the four-o'clock. Each leaf of the calyx is called a sepal. [ 1913 Webster ] 2. (Anat.) A cuplike division of the pelvis of the kidney, which surrounds one or more of the renal papillæ. [ 1913 Webster ] |