Eris

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noun \ˈer-is\

Definition of Eris

  1. :  a dwarf planet with a mean distance from the sun of 67 astronomical units (6.2 billion miles) and a diameter of 1500 miles (2400 kilometers)

Origin and Etymology of eris

Eris, ancient Greek goddess of strife


First Known Use: 2006

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a dividing ridge between drainage areas

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