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germinal vesicle

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noun Embryology.
  1. the large, vesicular nucleus of an ovum before the polar bodies are formed.

Origin of germinal vesicle

First recorded in 1850–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for germinal vesicle

germinal vesicle

noun
  1. biology the large nucleus of an oocyte before it develops into an ovum
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