Chalaza

[kә'leizә]

Definition

(noun.) one of two spiral bands of tissue connecting the egg yolk to the enclosing membrane at either end of the shell.

(noun.) basal part of a plant ovule opposite the micropyle; where integument and nucellus are joined.

Checker: Trent--From WordNet

Definition

(n.) The place on an ovule, or seed, where its outer coats cohere with each other and the nucleus.

(n.) A spiral band of thickened albuminous substance which exists in the white of the bird's egg, and serves to maintain the yolk in its position; the treadle.

Typed by Gladys