外骨格

Translation

shell / outer skeleton / chitinous casing

Meaning

A rigid external covering for the body in some invertebrate animals, providing both support and protection.

Examples

• Insects rely on their chitinous exoskeleton to prevent dehydration and protect against physical injury.
  Insects rely on their chitinous exoskeleton to prevent dehydration and protect against physical injury.
• As a lobster grows, it must periodically shed its old exoskeleton to accommodate its larger body size.
  As a lobster grows, it must periodically shed its old exoskeleton to accommodate its larger body size.