noun
- plural of arachnid; a class of arthropods that includes spiders, scorpions, ticks, and mites, characterized by having eight legs and two body segments
Usage: scientific
Examples
- Arachnids are found in nearly every habitat on Earth.
- Unlike insects, arachnids have eight legs instead of six.
- Spiders and scorpions are the most well-known arachnids.
- Many people fear arachnids, especially spiders.
- The biology class studied various arachnids under microscopes.
- Arachnids play important roles in controlling insect populations.