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megaspore

 - 4 dictionary results

meg⋅a⋅spore

  [meg-uh-spawr, -spohr]
Use megaspore in a Sentence
–noun Botany.
1. the larger of the two kinds of spores characteristically produced by seed plants and a few fern allies, developing into a female gametophyte. Compare microspore.
2. the embryo sac of a flowering plant.
Also called macrospore.

Origin:
1885–90; mega- + spore

Related forms:
meg⋅a⋅spor⋅ic  [meg-uh-spawr-ik, -spor-] , adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To megaspore
meg·a·spore   (měg'ə-spôr', -spōr')   
n.  The larger of two types of spores that give rise to a female gametophyte. Also called macrospore.
meg'a·spor'ic adj.
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: mega·spore
Pronunciation: 'meg-&-"spO(&)r, -"spo(&)r
Function: noun
1 : a spore in heterosporous plants that givesrise to female gametophytes and is generally larger than a microspore
2 : MACROSPORE —mega·spor·ic /"meg-&-'spOr-ik, -'spor-/ adjective
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Science Dictionary
megaspore   (měg'ə-spôr)  Pronunciation Key 
One of the two types of haploid spores produced by a heterosporous plant. Megaspores develop into female gametophytes and are usually larger than microspores.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
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