Chaeta

Definition

A bristle-like structure found on the bodies of certain invertebrates, such as annelid worms, often used for locomotion, sensing, or defense. In insects, similar structures are often referred to as 'setae'.

Etymology

From Greek 'khaitē', meaning 'hair, bristle'.

Example

The annelid's chaetae help it to burrow through soil and navigate its environment.

Synonyms

• Bristle

Related Terms

• Setae
• Sensory hairs
• Locomotion

Usage Notes

Chaetae can vary greatly in size, shape, and function depending on the species and their specific needs.