[ blas-tuh-pawr, -pohr ]
/ ˈblæs təˌpɔr, -ˌpoʊr /

noun Embryology.

the opening of an archenteron.

Origin of blastopore

1875–80; blasto- + -pore passage; see pore2

Related forms

blas·to·por·ic [blas-tuh-pawr-ik, -por-] /ˈblæs təˈpɔr ɪk, -ˈpɒr-/, blas·to·po·ral [blas-tuh-pawr-uh l, -pohr-] /ˌblæs təˈpɔr əl, -ˈpoʊr-/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for blastopore

Medicine definitions for blastopore


[ blăstə-pôr′ ]


The opening into the archenteron formed by the invagination of the blastula to form a gastrula.

Related forms

blas′to•poric null adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.