GASTRULA


Meaning of GASTRULA in English

— gastrular , adj.

/gas"troo leuh/ , n. , pl. gastrulas, gastrulae /-lee'/ . Embryol.

a metazoan embryo in an early state of germ layer formation following the blastula stage, consisting of a cuplike body of two layers of cells, the ectoderm and endoderm, enclosing a central cavity, or archenteron, that opens to the outside by the blastopore: in most animals progressing to the formation of a third cell layer, the mesoderm.

[ 1875-80; ]

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .