Arachnida

Arachnida is a term in zoology for a class of chelicerate arthropods, such as spiders, scorpions, mites, and ticks. They have book lungs and tracheae. These creatures having silk or poison glands, have also adapted themselves to terrestrial life conditions.

Nearby pages
Arachnoid, Arachnophobia, Arad, Aradan, Araf