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malacostracan

[mal-uh-kos-truh-kuh n] /ˌmæl əˈkɒs trə kən/
adjective
1.
belonging or pertaining to the crustacean subclass Malacostraca, which includes the lobsters, shrimps, crabs, etc.
noun
2.
a malacostracan crustacean.
Origin
1825-1835
1825-35; < Neo-Latin Malacostrac(a) order of crustacea (< Greek, neuter plural of malakóstrakos soft-shelled, equivalent to malak- malaco- + -ostrakos, adj. derivative of óstrakon shell (of mollusks, etc.); cf. ostracize) + -an
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for malacostracan
  • Toxicity of some insecticides to four species of malacostracan crustaceans.
British Dictionary definitions for malacostracan

malacostracan

/ˌmæləˈkɒstrəkən/
noun
1.
any crustacean of the subclass or group Malacostraca, including lobsters, crabs, woodlice, sand hoppers, and opossum shrimps
adjective
2.
of, relating to, or belonging to the Malacostraca
Word Origin
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
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Encyclopedia Article for malacostracan

any member of the 22,000 species of the class Malacostraca (subphylum Crustacea), a widely distributed group of marine, freshwater, and terrestrial invertebrates.

Learn more about malacostracan with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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