Chalaza

Definition of Chalaza

Cha`la´za
n.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.

Related Words

ovule, plant part, plant structure
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