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 As a result of this and other unusual qualities, everything that falls into the lake, from pollen grains to radioactive particles, gets preserved in layers of sediment that can be very precisely dated. Elizabeth Kolbert, The New Yorker, 20 Apr. 2024 So far, the peak daily count was 1,171 pollen grains per cubic meter of air measured in early March. Ian Livingston, Washington Post, 14 Mar. 2024 That wind picks up respiratory irritants such as pollen grains, fungal spores and air pollutants, including particulate matter. Elana Spivack, Scientific American, 20 Oct. 2023 Pollen count means how much pollen is in the air - it is measured by the number of pollen grains in a specific unit of air. Anna Kaufman, USA TODAY, 6 May 2023 Maybe my hairy body is like a drone’s: eating pollen grains from a thousand flowers, spreading nectar across the comb in darkness, then flapping my wings to dry up the water and hasten the creation of viscous honey. Henri Cole, The New Yorker, 4 Dec. 2023 Adeyeye further explains that rain can also rupture the pollen grains, breaking them into smaller particles or releasing their contents into the air. Elana Spivack, Scientific American, 20 Oct. 2023 In the layers of prehistoric sediment, organic molecules produced by marine plankton provided a window into sea conditions, and buried pollen grains preserved a record of land vegetation. Margaret Osborne, Smithsonian Magazine, 16 Aug. 2023 In the new study, the researchers determined the radiocarbon age of microscopic pollen grains in the sediment layers, which hadn’t grown in the lake water. Tom Metcalfe, Scientific American, 5 Oct. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'pollen grain.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1835, in the meaning defined above

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

Dictionary Entries Near pollen grain

Cite this Entry

“Pollen grain.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pollen%20grain. Accessed 25 Apr. 2024.

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
Love words? Need even more definitions?

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