Found 2 items, similar to chalaza.
English → English (WordNet) Definition: chalaza chalaza n 1: basal part of a plant ovule opposite the micropyle; where integument and nucellus are joined 2: one of two spiral bands of tissue connecting the egg yolk to the enclosing membrane at either end of the shell [also: chalazae (pl)]
English → English (gcide) Definition: Chalaza Chalaza \Cha*la"za\, n.; pl. E. Chalazas, L. Chalaz[ae]. [NL., fr. Gr. ? hail, pimple.] 1. (Bot.) The place on an ovule, or seed, where its outer coats cohere with each other and the nucleus. [1913 Webster] 2. (Biol.) 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. [1913 Webster]