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polar body

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noun Cell Biology.
one of the minute cells arising from the unequal meiotic divisions of the ovum at or near the time of fertilization.
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Origin of polar body

First recorded in 1885–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

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British Dictionary definitions for polar body

polar body

noun
physiol a tiny cell containing little cytoplasm that is produced with the ovum during oogenesis when the oocyte undergoes meiosis
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

Scientific definitions for polar body

polar body

One of the small cells that are produced during the development of an oocyte and ultimately degenerate. A polar body contains one of the nuclei derived from the first or second meiotic division but little or no cytoplasm. See Note at oogenesis.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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