pollen grain


Definition of pollen grain

: 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 Their findings indicated that the earth can often offer previews to major climate change tipping points that include ocean level rise, sediment accumulation and pollen grain fossils. Stephanie Innes, The Arizona Republic, 14 Aug. 2021 Note that both a pollen grain and a dust particle can be larger than 5 microns. Jv Chamary, Forbes, 29 May 2021 But there’s more to it than simply looking at leaves and pollen grains under a microscope. Amy Stewart, Washington Post, 26 Sep. 2019 The solution, weak enough to avoid harming the prized plant, could help dissolve the hard exteriors of pollen grains to aid fertilization. Bradley White, National Geographic, 24 Dec. 2019 Expect conditions around the US to worsen as the weeds’ 1 billion pollen grains per plant (!) percolate around the country. Natasha Frost, Quartz, 2 Sep. 2019 Traditionally scientists have used pollen grains from lakebed cores to study past plant communities. Paul Voosen, Science | AAAS, 10 Dec. 2019 Over the last three years, Lyson, Miller and their team have extracted more than 7,000 fossils from the site, including 16 species of mammals, 233 species of plant, and over 37,000 pollen grains. Cathleen O'grady, Ars Technica, 25 Oct. 2019 The team also collected more than 6,000 fossilized leaves and analyzed more than 37,000 pollen grains. New York Times, 24 Oct. 2019 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pollen grain.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of pollen grain

1835, in the meaning defined above

Learn More About pollen grain

Time Traveler for pollen grain

Time Traveler

The first known use of pollen grain was in 1835

See more words from the same year

Dictionary Entries Near pollen grain


pollen grain


See More Nearby Entries 

Statistics for pollen grain

Cite this Entry

“Pollen grain.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pollen%20grain. Accessed 26 Jun. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More from Merriam-Webster on pollen grain

Britannica.com: Encyclopedia article about pollen grain


Test Your Vocabulary

Words Named After People

  • name tags
  • Namesake of the leotard, Jules Léotard had what profession?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!