any wingless, carnivorous arthropod of the class Arachnida, including spiders, scorpions, mites, ticks, and daddy-longlegs, having a body divided into two parts, the cephalothorax and the abdomen, and having eight appendages and no antennae. Compare insect .

belonging or pertaining to the arachnids.

noun

harvestman , mite , scorpion , spider , tarantula , tick