carapace

n. turtle's shell

A carapace is a dorsal section of an exoskeleton or shell in a number of animal groups.
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Carapace the dorsal shell of turtles and tortoises. Abnormalities are caused by trauma, dietary deficiencies, infections, environmental factors and [more]Carapace - Community and Resources

Noun
1. hard outer covering or case of certain organisms such as arthropods and turtles
(synonym) shell, cuticle
(hypernym) exoskeleton
(hyponym) cuticula
(part-holonym) mollusk, mollusc, shellfish
(substance-meronym) shell

n. shell, carapace, armature