Cha*la"za (?), n.; pl. E. Chalazas, L. Chalazae (#). [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.

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.


© Webster 1913.

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