trapdoor spider(redirected from trap-door spider)
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Related to trap-door spider: wolf spider, Black widow spider, Camel Spider, Mouse Spider, Funnel web spider
a very venomous spider that lives in a funnel-shaped web built into a horizontal crack or existing burrow. A bite causes intense pain at the site and then generally, sweating, dehydration and paralysis, and is often fatal. Called also Atrax formidabilis.