pollen grain

noun

: one of the granular microspores that occur in pollen and give rise to the male gametophyte of a seed plant

Examples of pollen grain in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Before the treatment, pollen grains are more like marbles: hard, inert and largely unreactive. Sandy Ong, JSTOR Daily, 11 Sep. 2025 Brain health food nutrition concept with fish, vegetables, seeds, pollen grain and herbs on rustic background. Hannah Millington, MSNBC Newsweek, 7 Aug. 2025 The flowers of certain plants release the microscopic, light-weight pollen grains in massive quantities. Megan Hughes, Better Homes & Gardens, 24 July 2025 These particles are less than 2.5 micrometers in diameter – about a tenth the size of a pollen grain. John C. Quindry, The Conversation, 10 July 2025 See All Example Sentences for pollen grain

Word History

First Known Use

1835, in the meaning defined above

Time Traveler
The first known use of pollen grain was in 1835

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Cite this Entry

“Pollen grain.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pollen%20grain. Accessed 30 Sep. 2025.

Kids Definition

pollen grain

noun
: one of the microscopic grains of which pollen is made up

More from Merriam-Webster on pollen grain

Last Updated: - Updated example sentences
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