Primarily used to describe the protective part of an animal's body; often related to biology. In biology class, we learned that a lobster's carapace is its main defense against predators.
Pro Tip 2/3
Not Always Hard
While typically hard, carapaces can vary in flexibility depending on the animal species. Unlike the rigid carapace of a tortoise, the carapace of a leatherback turtle is somewhat flexible.
Pro Tip 3/3
Visibly Distinct
A carapace is usually a distinct and visible part of an animal's body covering the upper section. When you see a crab, the carapace is the upper, dome-shaped part of its body.