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[in-faw-nuh] /ˈɪnˌfɔ nə/
noun, plural infaunas, infaunae
[in-faw-nee] /ˈɪnˌfɔ ni/ (Show IPA)
the aggregate of organisms that burrow into and live in the bottom deposits of the ocean.
Origin of infauna
1910-15; in-1 + fauna; compare epifauna
Related forms
infaunal, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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infauna in Science
Benthic animals that live in the substrate of a body of water, especially in a soft sea bottom. Infauna usually construct tubes or burrows and are commonly found in deeper and subtidal waters. Clams, tubeworms, and burrowing crabs are infaunal animals. Compare epifauna.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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