|1.||any crustacean of the subclass or group Malacostraca, including lobsters, crabs, woodlice, sand hoppers, and opossum shrimps|
|2.||of, relating to, or belonging to the Malacostraca|
|[C19: from New Latin, from Greek malakōstrakos, from |
any member of the 22,000 species of the class Malacostraca (subphylum Crustacea), a widely distributed group of marine, freshwater, and terrestrial invertebrates.
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