Chalaza(redirected from chalazas)
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The region at the base of the nucellus of an ovule; gives rise to the integuments.
(cell and molecular biology)
One of the paired, spiral, albuminous bands in a bird's egg that attach the yolk to the shell lining membrane at the ends of the egg.
the basal part of the ovule where the seed stalk attaches the ovule to the placenta.