spider
nounAny of numerous arachnids of the order Araneae, having a body divided into a cephalothorax and an abdomen, eight legs, two chelicerae that bear venom glands, and two or more spinnerets that produce the silk used to make nests, cocoons, or webs for trapping insects.
nounOne that resembles a spider, as in appearance, character, or movement.
nounA program that automatically retrieves webpages and follows the links on them to retrieve more webpages. Spiders are used by search engines to retrieve publicly accessible webpages for indexing, and they can also be used to check for links to webpages that no longer exist.
nounA trivet.
nounIn the English form of pyramid-pool billiards, a skeleton rest, or bridge, designed for certain exigencies.
nounIn archery, a prize for the best gold, awarded at the Grand National Archery meeting in England.
nounAn arthropod of the order AraneƦ, Araneina, or Araneida (the old Linnean genus Aranea), of the class Arachnida, of which there are many families, hundreds of genera, and thousands of species, found all over the world.
nounSome other arachnidan, resembling or mistaken for a spider; a spider-mite. See
A spider-crab; a sea-spider.