Calyx

n.	1.	(Bot.) The covering of a flower. See Flower.
	2.	(Anat.) A cuplike division of the pelvis of the kidney, which surrounds one or more of the renal papillæ.

Noun

1.

calyx - (botany) the whorl of sepals of a flower collectively forming the outer floral envelope or layer of the perianth enclosing and supporting the developing bud; usually green

botany, chlamys, coil, curl, curlicue, floral envelope, gyre, hull, pappus, perianth, perigone, perigonium, phytology, ringlet, roll, scroll, sepal, whorl