CALYX
calyx
(noun) (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
Source: WordNet® 3.1
Etymology
Noun
calyx (plural calyces or calyxes)
(botany) The outermost whorl of flower parts, comprising the sepals, which covers and protects the petals as they develop.
Meronym: sepal
(zoology, anatomy) Any of various cup-like structures.
A chamber in the mammalian kidney through which urine passes.
The crown containing the viscera of crinoids and similar echinoderms, entoprocts, and the polyps of some cnidarians.
A funnel-shaped expansion of the vas deferens or oviduct of insects.
A flattened cap of neuropil in the brain of insects.
Source: Wiktionary
Ca"lyx, n.; pl. E. Calyxes, L. Calyces. Etym: [L. calyx, -ycis, fr.
Gr. Chalice Helmet.]
1. (Bot.)
Definition: The covering of a flower. See Flower.
Note: 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.
2. (Anat.)
Definition: A cuplike division of the pelvis of the kidney, which surrounds
one or more of the renal papilæ.
Source: Webster’s Unabridged Dictionary 1913 Edition