Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The collection of minute or microscopic organisms that inhabit the surface layer of a body of water.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. All the organisms that live at the surface of water

Etymologies

Greek neuston, neuter of neustos, swimming, from nein, to swim.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek νευστός ("swimming"). (Wiktionary)

Examples

  • And we have studies looking at organisms from sponges to sharks, looking at the food chain, both on the bottom of the ocean and also on the extreme layer of - a very thin layer called the neuston, the very surface of the ocean.

    Assessing The BP Spill's Impact

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