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
Storms can also break apart pollen grains, creating smaller particles that can penetrate deeper into the lungs.
—
Christine Cairns Fortuin, The Conversation, 5 May 2025
Other people are also finding out that doors and windows can’t protect them, as some of the tiniest pollen grains seep in.
—Umair Irfan, Wired News, 5 Apr. 2025
Analysis of ancient pollen grains from Longtan revealed the climate and environment would have been similar in southwestern China to that of Europe.
—Katie Hunt, CNN Money, 1 Apr. 2025
These filters are especially good at trapping tiny allergens like errant pollen grains as well as animal dander and dust that might be circulating in your space.
—Erica Sloan, SELF, 2 Apr. 2025
See All Example Sentences for pollen grain
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Christine Cairns Fortuin, The Conversation, 5 May 2025
Other people are also finding out that doors and windows can’t protect them, as some of the tiniest pollen grains seep in.
—Umair Irfan, Wired News, 5 Apr. 2025
Analysis of ancient pollen grains from Longtan revealed the climate and environment would have been similar in southwestern China to that of Europe.
—Katie Hunt, CNN Money, 1 Apr. 2025
These filters are especially good at trapping tiny allergens like errant pollen grains as well as animal dander and dust that might be circulating in your space.
—Erica Sloan, SELF, 2 Apr. 2025
See All Example Sentences for pollen grain
Cite this Entry
“Pollen grain.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pollen%20grain. Accessed 22 May. 2025.
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