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phalangium

noun
pha·​lan·​gi·​um | \ fəˈlanjēəm, fāˈ-\

Definition of phalangium 

1 plural phalangia\ -​jēə\, obsolete : a venomous spider
2 capitalized : a genus (the type of the family the Phalangiidae) of harvestmen

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History and Etymology for phalangium

New Latin, from Greek phalangion, a spider, from phalang-, phalanx phalanx

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