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blastopore

[blas-tuh-pawr, -pohr] /ˈblæs təˌpɔr, -ˌpoʊr/
noun, Embryology
1.
the opening of an archenteron.
Origin
1875-1880
1875-80; blasto- + -pore passage; see pore2
Related forms
blastoporic
[blas-tuh-pawr-ik, -por-] /ˈblæs təˈpɔr ɪk, -ˈpɒr-/ (Show IPA),
blastoporal
[blas-tuh-pawr-uh l, -pohr-] /ˌblæs təˈpɔr əl, -ˈpoʊr-/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for blastopore
  • They develop their embryo by spiral cleavage, and the blastopore of the gastrula develops into the mouth.
blastopore in Medicine

blastopore blas·to·pore (blās'tə-pôr')
n.
The opening into the archenteron formed by the invagination of the blastula to form a gastrula.


blas'to·por'ic or blas'to·por'al (-pôr'əl) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Article for blastopore

the opening by which the cavity of the gastrula, an embryonic stage in animal development, communicates with the exterior. During maturation of some animals it evolves into the anus or the mouth; in others it is covered over and contributes to the canal joining the primitive gut with the cavity of the neural tube, the primitive nervous system.

Learn more about blastopore with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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