Isopoda
plural noun
Isop·o·da
| \ īˈsäpədə\
Definition of Isopoda
: a large order of small sessil-eyed malacostracan crustaceans (division Peracarida) that lack a carapace, that have a body usually depressed with seven free thoracic segments each bearing a pair of similar legs, and that occur in marine, freshwater, or terrestrial habitats or as parasites on invertebrates and fish — compare tanaidacea
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