Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Aquatic animals, such as clams or burrowing worms, that live beneath the surface of a sea or lake floor.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun An aquatic
organism that lives within the dominantmedium of itsenvironment .
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
[in– + fauna.]
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Examples
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The infauna occur in pockets of sediment on the rocky wall.
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