\ɹɪdɪvˈa͡ɪd], \ɹɪdɪvˈa‍ɪd], \ɹ_ɪ_d_ɪ_v_ˈaɪ_d]\
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2010 - New Age Dictionary Database
By Oddity Software
1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.
1908 - Chambers's Twentieth Century Dictionary of the English Language
By Thomas Davidson

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  • A division of Arachnida including those spiders which have four lungs, or pulmonary sacs. It includes the bird spiders (Mygale) and trapdoor spiders. See Mygale.
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