chalaza

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Noun chalaza has 2 senses

chalaza - basal part of a plant ovule opposite the micropyle; where integument and nucellus are joined
--₁ is a kind of plant part, plant structure
--₁ is a part of ovule
chalaza - one of two spiral bands of tissue connecting the egg yolk to the enclosing membrane at either end of the shell
--₂ is a kind of animal tissue
--₂ is a part of egg