[{"Bold_text": "noun", "List Items": ["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 ."]}, {"Bold_text": "adjective", "List Items": ["belonging or pertaining to the arachnids."]}]