A spider is a small, eight-legged animal. Some people scream when they see a spider, but most of the time spiders won’t hurt you.

You might think of spiders as falling into the category of "bugs," but they're not insects at all—spiders, like ticks and scorpions, are arachnids. Most spiders are harmless to people and helpful in controlling insect populations. Spiders feed on bugs that get caught in their sticky webs. The Germanic root of spider means "spinner." If you are terrified of spiders, you may suffer from arachnophobia, from the Latin arachnid, "spider," and phobia, "fear."

Definitions of spider

n predatory arachnid with eight legs, two poison fangs, two feelers, and usually two silk-spinning organs at the back end of the body; they spin silk to make cocoons for eggs or traps for prey

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orb-weaving spider
a spider that spins a circular (or near circular) web
Argiope aurantia, black and gold garden spider
a widely distributed North American garden spider
Araneus cavaticus, barn spider
an orange and tan spider with darkly banded legs that spins an orb web daily
Aranea diademata, garden spider
a spider common in European gardens
comb-footed spider, theridiid
spider having a comb-like row of bristles on each hind foot
Latrodectus mactans, black widow
venomous New World spider; the female is black with an hourglass-shaped red mark on the underside of the abdomen
large hairy tropical spider with fangs that can inflict painful but not highly venomous bites
hunting spider, wolf spider
ground spider that hunts its prey instead of using a web
trap-door spider
American spider that constructs a silk-lined nest with a hinged lid
European wolf spider, Lycosa tarentula, tarantula
large southern European spider once thought to be the cause of tarantism (uncontrollable bodily movement)
Type of:
arachnid, arachnoid
air-breathing arthropods characterized by simple eyes and four pairs of legs

n a computer program that prowls the internet looking for publicly accessible resources that can be added to a database; the database can then be searched with a search engine

Type of:
computer program, computer programme, program, programme
(computer science) a sequence of instructions that a computer can interpret and execute

n a skillet made of cast iron

Type of:
frying pan, frypan, skillet
a pan used for frying foods

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