arachnid - definition in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online (US)

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English definition of “arachnid”

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arachnid

noun [C] uk   us   /əˈræk.nɪd/ specialized
any of a group of small animals, similar to insects but with four pairs of legs, that include spiders, scorpions, ticks, and mites
(Definition of arachnid from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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