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blastodisk

or blastodisc

[blas-tuh-disk] /ˈblæs təˌdɪsk/
noun, Embryology.
1.
the blastula that forms as a flattened sphere on top of the yolk in the yolk-laden eggs of birds and reptiles.
Origin of blastodisk
1885-1890
First recorded in 1885-90; blasto- + disk
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for blastodisc

blastodisc

/ˈblæstəʊˌdɪsk/
noun
1.
another name for blastoderm
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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blastodisc in Medicine

blastodisk blas·to·disk or blas·to·disc (blās'tə-dĭsk')
n.

  1. The disk of active cytoplasm at the animal pole of a telolecithal egg.

  2. The blastoderm, especially in very early stages when its extent is small.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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