microspore(redirected from microsporous)
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Related to microsporous: microporosity
A spore that gives rise to a male gametophyte and is smaller than a megaspore.
mi′cro·spo′ric, mi′cro·spo′rous (mī′krə-spôr′əs, mī-krŏs′pər-əs) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. (Botany) the smaller of two types of spore produced by some spore-bearing plants, which develops into the male gametophyte. Compare megaspore1
2. (Botany) the pollen grain of seed plants
ˌmicroˈsporic, ˌmicroˈsporous adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
mi•cro•spore(ˈmaɪ krəˌspɔr, -ˌspoʊr)
the smaller of the two kinds of spores characteristically produced by seed plants and some fern allies, developing into a male gametophyte. Compare megaspore (def. 1).
mi`cro•spor′ic (-ˈspɔr ɪk, -ˈspɒr-) mi`cro•spor′ous (-krəˈspɔr əs, -ˈspoʊr-, -ˈkrɒs pər əs) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||microspore - smaller of the two types of spore produced in heterosporous plants; develops in the pollen sac into a male gametophyte|
spore - a small usually single-celled asexual reproductive body produced by many nonflowering plants and fungi and some bacteria and protozoans and that are capable of developing into a new individual without sexual fusion; "a sexual spore is formed after the fusion of gametes"
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