Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun sedna

1 sense of sedna

Sense 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)
       INSTANCE OF=> minor planet, planetoid -- (any of numerous small celestial bodies that move around the sun)