Search Result for "sepal": 
Wordnet 3.0

NOUN (1)

1. one of the green parts that form the calyx of a flower;


The Collaborative International Dictionary of English v.0.48:

Sepal \Se"pal\, n. [NL. sepalum, formed in imitation of NL. petalum, petal, to denote one of the divisions of the calyx: cf. F. s['e]pale.] (Bot.) A leaf or division of the calyx. [1913 Webster] Note: When the calyx consists of but one part, it is said to be monosepalous; when of two parts, it is said to be disepalous; when of a variable and indefinite number of parts, it is said to be polysepalous; when of several parts united, it is properly called gamosepalous. [1913 Webster]
WordNet (r) 3.0 (2006):

sepal n 1: one of the green parts that form the calyx of a flower