Segments

Definition

Distinct sections into which the body of an arthropod is divided, each performing specific functions in the organism's overall physiology and behavior.

Etymology

From Latin 'segmentum', meaning 'a piece cut off, a section'.

Example

The body of an insect is typically divided into three main segments: the head, thorax, and abdomen.

Synonyms

• Sections
• Divisions

Related Terms

• Tagmata
• Metamerism
• Segmented body

Usage Notes

In entomology, segments often refer to the division of the insect body parts, while in arachnology, it may also refer to the segmentation of the legs and other appendages.