Carapace

Definition

The hard, protective outer shell or exoskeleton that covers the dorsal (upper) surface of certain crustaceans, arachnids, and other arthropods.

Etymology

From the French 'carapace', which originates from the Spanish 'carapacho', meaning 'shell'.

Example

The carapace of a crab provides protection against predators and environmental hazards.

Synonyms

• Shell
• Exoskeleton

Related Terms

• Exoskeleton
• Plastron
• Cheliped

Usage Notes

The term 'carapace' specifically refers to the upper section of the exoskeleton, whereas the underside is often referred to as the plastron in some species.