noun \ˈin-ˌf-nə, -ˌfä-\

Definition of INFAUNA

:  benthic fauna living in the substrate and especially in a soft sea bottom — compare epifauna
in·fau·nal \-ˌf-nəl, -ˌfä-\ adjective

Origin of INFAUNA

New Latin, from 2in- + fauna
First Known Use: 1914


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