deuterostome

Noun.  (biology) any animal in which the initial pore formed during gastrulation becomes the anus, and the second pore becomes the mouth.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.