chalaza Meaning, Definition & Usage
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noun basal part of a plant ovule opposite the micropyle; where integument and nucellus are joined
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noun one of two spiral bands of tissue connecting the egg yolk to the enclosing membrane at either end of the shell
WordNet
Cha*la"za noun
Etymology
NL., fr. Gr. hail, pimple.Wordforms
Definitions
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(Bot.) The place on an ovule, or seed, where its outer coats cohere with each other and the nucleus. -
(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.
