sphaeroma

noun
sphae·ro·ma | \sfə̇ˈrōmə\

Definition of sphaeroma 

1 capitalized : a genus (the type of the family Sphaeromidae) of marine isopod crustaceans having broad oval bodies that can sometimes be rolled into a ball, an abdomen of two segments, and well developed antennae and including destructive borers of pilings and other timbers — see rock-boring isopod

2 plural -s : any isopod of the genus Sphaeroma

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History and Etymology for sphaeroma

New Latin, from Greek sphairōma something made round, from sphairoun to make round, from sphaira ball, sphere

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