"Gastrulae" is a word in ENGLISH

Applied to a gastrula when the blastopore does not entirely close up.

The primitive enteron or undifferentiated digestive sac of a gastrula or other embryo. See Illust. under Invagination.

A primeval larval form; a double-walled sac from which, according to the hypothesis of Haeckel, man and all other animals, …

An embryonic form having its origin in the invagination or pushing in of the wall of the planula or blastula …

Of or pertaining to a gastrula.

The process of invagination, in embryonic development, by which a gastrula is formed.

Developing, in the case of multicellular organisms, from the same embryonic systems into which the secondary unit (gastrula or plant …

In embryonic development, a vesicle filled with fluid, formed from the morula by the divergence of its cells in such …

An order of Crustacea including the squillas. The maxillipeds are leglike in form, and the large claws are comblike. They …