Definition of Sedna in English:

Sedna

Syllabification: Sed·na
Pronunciation: /ˈsednə
 
/
Astronomy A reddish celestial body about half the size of earth’s moon. It is the most distant known object in the solar system and orbits the sun every 10,500 years.

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Word of the day impudicity
Pronunciation: ˌimpyəˈdisitē
noun
lack of modesty