Definitions for "Blastopore"
The pore or opening leading into the cavity of invagination, or archenteron.
The opening from the archenteron to the exterior of a gastrula.
( blas-toh-por) [Gk. blastos, sprout + poros, a way, means, path] The opening of the archenteron in the gastrula that develops into the mouth in protostomes and the anus in deuterostomes.