| / English Dictionary |
SEDNA
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
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
Classified under:
Nouns denoting natural objects (not man-made)
Instance hypernyms:
minor planet; planetoid (any of numerous small celestial bodies that move around the sun)
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