- belonging or pertaining to the crustacean subclass Malacostraca, which includes the lobsters, shrimps, crabs, etc.
- a malacostracan crustacean.
Origin of malacostracan
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for malacostracan
Historical Examples of malacostracan
The second antennae, mandibles and two pairs of maxillae may also be claimed as of malacostracan type.
- any crustacean of the subclass or group Malacostraca, including lobsters, crabs, woodlice, sand hoppers, and opossum shrimps
- of, relating to, or belonging to the Malacostraca
Word Origin for malacostracan
C19: from New Latin, from Greek malakōstrakos, from malaco- + ostrakon shell
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012