sepal Meaning, Definition & Usage

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

WordNet

Se"pal noun
Etymology
NL. sepalum, formed in imitation of NL. petalum, petal, to denote one of the divisions of the calyx: cf. F. sépale.
Definitions
  1. (Bot.) A leaf or division of the calyx. ✍ 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.

Webster 1913