crustaceans'

crus·ta·cean

[kruh-stey-shuhn]
noun
1.
any chiefly aquatic arthropod of the class Crustacea, typically having the body covered with a hard shell or crust, including the lobsters, shrimps, crabs, barnacles, and wood lice.
adjective
2.
belonging or pertaining to the crustaceans.

Origin:
1825–35; < Neo-Latin Crustace(a) (neuter plural) hard-shelled ones (see crust, -acea) + -an

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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
crustacean (krʌˈsteɪʃən) [Click for IPA pronunciation guide]
 
n
1.  any arthropod of the mainly aquatic class Crustacea, typically having a carapace hardened with lime and including the lobsters, crabs, shrimps, woodlice, barnacles, copepods, and water fleas
 
adj
2.  of, relating to, or belonging to the Crustacea
 
[C19: from New Latin crūstāceus hard-shelled, from Latin crūsta shell, crust]

Collins English Dictionary - Complete & Unabridged 10th Edition
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00:10
Crustaceans' is always a great word to know.
So is interrobang. Does it mean:
a stew of meat, vegetables, potatoes, etc.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
Etymonline
Word Origin & History

crustacean
1835, from Mod.L. Crustacea the class name (q.v.).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
crustacean   (krŭ-stā'shən)  Pronunciation Key 
Any of various widespread arthropods of the class Crustacea that live mostly in water and have a hard shell, a segmented body, and jointed appendages. Crustaceans include crabs, lobsters, shrimp, barnacles, and copepods.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary
crustacean [(kru-stay-shuhn)]

A class of arthropods with shells.

Note: Crabs, lobsters, shrimp, and crayfish are crustaceans.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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