noun
- plural of arachnidan; members of the class Arachnida, including spiders, scorpions, ticks, and mites
Usage: technical/scientific; plural form
Examples
- Arachnidans are characterized by eight legs and two body segments.
- The museum's collection includes preserved specimens of various arachnidans from around the world.
- Unlike insects, arachnidans do not have antennae or wings.
- Spiders and scorpions are both examples of arachnidans.
- Many arachnidans are beneficial to humans because they control pest populations.