microspore
[ mahy-kruh-spawr, ‐spohr ]
/ ˈmaɪ krəˌspɔr, ‐ˌspoʊr /
noun Botany.
the smaller of the two kinds of spores characteristically produced by seed plants and some fern allies, developing into a male gametophyte.Compare megaspore,
a pollen grain.
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OTHER WORDS FROM microspore
mi·cro·spor·ic [mahy-kruh-spawr-ik, ‐spor‐], /ˌmaɪ krəˈspɔr ɪk, ‐ˈspɒr‐/, mi·cro·spor·ous [mahy-kruh-spawr-uhs, ‐spohr‐, mahy-kros-per-uhs], /maɪ krəˈspɔr əs, ‐ˈspoʊr‐, maɪˈkrɒs pər əs/, adjectiveWords nearby microspore
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for microspore
Germination of the microspore begins before it leaves the pollen-sac.
Microspore, the smaller kind of spore when there are two kinds, 161.
The Elements of Botany|Asa Gray
British Dictionary definitions for microspore
microspore
/ (ˈmaɪkrəʊˌspɔː) /
noun
the smaller of two types of spore produced by some spore-bearing plants, which develops into the male gametophyteCompare megaspore (def. 1)
the pollen grain of seed plants
Derived forms of microspore
microsporic or microsporous, adjectiveCollins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Scientific definitions for microspore
microspore
[ mīk′rə-spôr′ ]
One of the two types of haploid spores produced by a heterosporous plant. Microspores develop into male gametophytes and are usually smaller than megaspores. In angiosperms, the microspore develops into the pollen grain.
The American Heritage® Science Dictionary
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