Quaoar
noun
Qua·oar ˈkwä(-ə)-ˌwär 
astronomy
: a probable dwarf planet that orbits far beyond the orbit of Neptune with a mean distance from the sun of about 43.4 astronomical units (4.03 billion miles) and a diameter of approximately 890 miles (1430 kilometers)
Discovered by Brown and his colleagues in 2002, Quaoar took center stage at a session of the planetary science meeting in Puerto Rico.
Ron Cowen, Science News, 16 Jan. 2010
Ron Cowen, Science News, 16 Jan. 2010Note: Quaoar is believed to qualify as a dwarf planet under the current definition of that term, but precise identification of its characteristics is made difficult by its distance from the Earth.
Word History
First Known Use
2002, in the meaning defined above
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