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{%type%} Definitions

WordNet 3.0Copyright Princeton University
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Short "hint"

A planetoid of rock and ice about three-quarters the size of Pluto discovered in 2003; the most distant object known to orbit around the sun.

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Usage examples (31)
  • The planetoid known as Sedna is more than 8 billion miles from the sun.
  • O'BRIEN: We've been calling Sedna a planetoid.
  • They're talking about Sedna as being an ort object.
  • O'BRIEN: What exactly is the big deal here with Sedna?
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