Hypertext Webster Gateway: "crustacean"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Crustacean \Crus*ta"cean\ (kr?s-t?"shan; 97), a. (Zo["o]l.)
Of or pertaining to the Crustacea; crustaceous. -- n. An
animal belonging to the class Crustacea.
From WordNet (r) 1.7 (wn)
crustacean
n : any mainly aquatic arthropod usually having a segmented body
and chitinous exoskeleton
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