1 definition found From The Collaborative International Dictionary of English v.0.48 [gcide]: 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]
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