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marine snow

British  

noun

  1. small particles of organic biogenic marine sediment, including the remains of organisms, faecal matter, and the shells of planktonic oganisms, that slowly drift down to the sea floor

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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To investigate the process, the researchers recreated marine snow in the laboratory using diatoms, microscopic algae that naturally clump together as they sink through the ocean.

From Science Daily Jul. 12, 2026

The team placed these artificial particles inside specially designed rotating pressure tanks that kept the marine snow suspended instead of allowing it to settle.

From Science Daily Jul. 12, 2026

And that marine snow becomes food for the creatures of the deep.

From Salon Feb. 17, 2025

It was hunting for marine snow - “poo, basically” in the words of one researcher.

From BBC Aug. 9, 2024

In experiments in Crete, with funding from the European Union’s Horizon 2020 research program, Dr. Galgani has tried mimicking marine snow on a larger scale.

From New York Times Apr. 3, 2022

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