Cuticle
- Pronunciation
- /KYOO-ti-kuhl/
- Category
- Anatomy
- Singular
- Cuticle
- Plural
- Cuticles
Definition
A non-cellular protective layer that covers the exterior of many invertebrates, including insects and arachnids, providing structure and protection against environmental factors.
Etymology
From Latin 'cuticula', meaning 'little skin' or 'outer skin'.
Example
The cuticle of a beetle helps protect it from desiccation and injury.
Synonyms
Related Terms
- Chitin
- Exuviae
- Molting
- Sclerotization
Usage Notes
The cuticle is mainly composed of chitin and proteins, and in many arthropods, it is periodically shed and renewed through the molting process.