plural noun Ther·a·pho·si·dae \ˌtherəˈfōsəˌdē, -ōzə-\

Definition of Theraphosidae

  1. :  a family of very large chiefly tropical spiders with four spinnerets and the eight eyes in a compact group — see bird spider, eurypelma, tarantula, theraphosa

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Origin and Etymology of theraphosidae

New Latin, from Theraphosa, type genus + -idae

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