noun in·fau·na \ˈin-ˌfȯ-nə, -ˌfä-\

Definition of infauna

  1. :  benthic fauna living in the substrate and especially in a soft sea bottom — compare epifauna


play \ˈin-ˌfȯ-nəl, -ˌfä-\ adjective

Origin and Etymology of infauna

New Latin, from 2in- + fauna

First Known Use: 1914

Learn More about infauna

Seen and Heard

What made you want to look up infauna? Please tell us where you read or heard it (including the quote, if possible).