plural noun Tha·las·si·nid·ea \thəˌlasəˈnidēə\

Definition of Thalassinidea

  1. :  a subtribe of Anomura including small crustaceans with a thin flexible carapace, long soft abdomen, and unsymmetrical chelae that burrow in sand or mud along seashores — compare ghost shrimp


noun or adjective


\thəˈlasəˌnȯid\ adjective

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Origin and Etymology of thalassinidea

New Latin, from Thalassina, genus of crustaceans (from thalass- + -ina) + -idea

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feeling or affected by lethargy

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