[1] : The Collaborative International Dictionary of English v.0.48

carapace \car"apace\ ka^r".ap=as, n. f. zool.
   the thick shell or shield which covers the back of the
   tortoise, or turtle, the crab, and other crustaceous animals.
   1913 webster

[2] : WordNet (r) 2.0

carapace
     n : hard outer covering or case of certain organisms such as
         arthropods and turtles syn: shell, cuticle
see also:
shell cuticle 

[3] : Moby Thesaurus II by Grady Ward, 1.0

18 moby thesaurus words for "carapace":
   armor, chitin, cortex, elytron, episperm, lorica, lorication, mail,
   pericarp, plate, protective covering, scute, scutum, shell, shield,
   test, testa, thick skin

Carapace >> C Words
Carapace, definition of term: Carapace
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