epicuticle
/ˌɛpɪˈkjuːtɪkəl/
noun
- The outermost, waxy layer of the cuticle of an insect or other arthropod, which helps prevent water loss.
- The epicuticle of a beetle is covered in a waterproof wax.
- Scientists study the epicuticle to understand how insects survive in dry environments.
- Damage to the epicuticle can cause an insect to dehydrate quickly.