English

Definition of dwarf planet noun from the Oxford Advanced Learner's Dictionary

 

dwarf planet

 noun
noun
BrE
 
; NAmE
 
 
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a round object in space that goes around the sun but is not as large as a planet and does not clear other objects from its path the dwarf planets Pluto, Ceres, Eris, Makemake and Haumea These bodies have been classified as dwarf planets. compare plutoid
See the Oxford Advanced American Dictionary entry: dwarf planet