ALL meanings of deuterostome
deu·ter·o·stome
D d - noun deuterostome any member of the major group of animals defined by the fact that during early embryonic development the first opening to form becomes the anus of the animal. The opposite is protostome 3
- noun deuterostome Embryology. a mouth that develops separately from the blastopore. 1
- noun deuterostome Taxonomy. any member of the phyla (Chordata, Hemichordata, Echinodermata, Chaetognatha) in which the anus appears first, developing at or near the blastopore, cleavage is radial and indeterminate, and the mesoderm and coelom form from outgrowths of the primitive gut. 1
- noun deuterostome (biology) any animal in which the initial pore formed during gastrulation becomes the anus, and the second pore becomes the mouth. 1
- noun deuterostome (zoology) any animal in which the initial pore formed during gastrulation becomes the anus, and the second pore becomes the mouth. 0