land crab
noun
Definition of land crab
1 : any of certain crabs chiefly of the family Gecarinidae of the coasts of warm countries that live mostly upon land and breed in the sea and that include many forms (as Gecarinus ruricola) that attain considerable size and are eaten by man
2 Australia : a burrowing crawfish (Eugaeus fossor)
From the M-W Editors
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