pleus·​ton ˈplü-stən How to pronounce pleuston (audio)
: organisms living in the thin surface layer existing at the air-water interface of a body of water
pleustonic adjective

Word History


International Scientific Vocabulary pleus- (irregular from Greek plein to sail, float) + -on (as in plankton)

First Known Use

1909, in the meaning defined above

Time Traveler
The first known use of pleuston was in 1909

Dictionary Entries Near pleuston

Cite this Entry

“Pleuston.” Dictionary, Merriam-Webster, Accessed 24 Apr. 2024.

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