Any of numerous arachnids of the order Araneae, having a body divided into a cephalothorax bearing eight legs, two poison fangs, and two feelers and an unsegmented abdomen bearing several spinnerets that produce the silk used to make nests, cocoons, or webs for trapping insects. One that resembles a spider, as in appearance, character, or movement. New England, Upper Northern, & South Atlantic U.S. See frying pan. See Regional Note at frying pan. A trivet.