Definition of Sedna in English :
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Sedna meaning in English
Meaning of Sedna in English
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Sedna
see synonyms of sednaNoun
1. sedna
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
WordNet Lexical Database for English. Princeton University. 2010.
Sedna
see synonyms of sednanoun
a red planet-like object, roughly half the size of the Earth's moon, orbiting the sun but considerably beyond Pluto; discovered in 2003
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