- a bony or chitinous shield, test, or shell covering some or all of the dorsal part of an animal, as of a turtle.
- the thick hard shield, made of chitin or bone, that covers part of the body of crabs, lobsters, tortoises, etc
1836, from French carapace “tortoise shell” (18c.), from Spanish carapacho or Portuguese carapaça, of uncertain origin, perhaps somehow from Latin capa (see cape (n.1)).
- A hard outer covering or shell made of bone or chitin on the back of animals such as turtles, armadillos, lobsters, and crabs.