gastrulation: Meaning and Definition of

gas•tru•la•tion

Pronunciation: (gas"troo-lā'shun), [key]
— n. Embryol.
  1. the formation of a gastrula.
  2. any process, as invagination, by which a blastula or other form of embryo is converted into a gastrula.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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