First Known Use: 1914
Dictionary
infauna
noun in·fau·na \ˈin-ˌfȯ-nə, -ˌfä-\
Definition of INFAUNA
: benthic fauna living in the substrate and especially in a soft sea bottom — compare epifauna
— in·fau·nal \-ˌfȯ-nəl, -ˌfä-\ adjective
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Origin of INFAUNA
New Latin, from 2in- + fauna
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