Arachnid

Pronunciation
/uh-RAK-nid/
Category
Taxonomy
Singular
Arachnid
Plural
Arachnids

Definition

A class of joint-legged invertebrate animals in the subphylum Chelicerata, which includes spiders, scorpions, ticks, and mites.

Etymology

From Greek 'aráchnē', meaning 'spider'.

Example

Spiders, scorpions, and ticks are all examples of arachnids.

Synonyms

Related Terms

Usage Notes

Arachnids are distinguished from insects by having eight legs and no antennae.