Exoskeleton
- Pronunciation
- /ek-soh-SKEL-uh-ton/
- Category
- Anatomy
- Singular
- Exoskeleton
- Plural
- Exoskeletons
Definition
A rigid external covering that provides support and protection to the bodies of arthropods, including insects and arachnids.
Etymology
From Greek 'exo-' meaning 'outside' and 'skeletos' meaning 'dried up, skeleton'.
Example
The exoskeleton of beetles is composed of chitin and provides robust protection against predators.
Synonyms
- External skeleton
- Shell
Related Terms
Usage Notes
Insects and arachnids periodically shed their exoskeletons in a process known as molting to allow for growth.