Sedna, n.
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
<noun.object>
Sedna
semantic pointers
instance hypernym
Word
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
<noun.object>
Sedna