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animal pole

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animal pole

–noun Biology.
the formative part of an ovum, having the greatest amount of cytoplasm and containing the nucleus.
Compare vegetal pole.


Origin:
1885–90
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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animal pole  
n.   Embryology
The portion of an egg that is opposite the vegetal pole and that contains the nucleus and most of the cytoplasm.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: animal pole
Function: noun
: the point on the surface of an egg that is diametrically opposite to the vegetal pole and usually marks the most active part ofthe protoplasm or the part containing least yolk
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

animal pole n.
The nuclear site in an ovum and the point from which polar bodies are extruded during maturation. Also called germinal pole.

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