microspore
noun
mi·cro·spore
ˈmī-krə-ˌspȯr 
: any of the spores in heterosporous plants that give rise to male gametophytes and are generally smaller than the megaspore
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“Microspore.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microspore. Accessed 29 Nov. 2024.
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microspore
noun
mi·cro·spore
ˈmī-krə-ˌspō(ə)r, -ˌspȯ(ə)r
1
: any of the spores in heterosporous plants that give rise to male gametophytes and are generally smaller than the megaspore
2
: the smaller of two forms of spores produced by various protozoans (as radiolarians) compare macrospore
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