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dwarf planet

noun

Definition of DWARF PLANET

:  a celestial body that orbits the sun and has a spherical shape but is not large enough to disturb other objects from its orbit
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First Known Use of DWARF PLANET

1993
DWARF PLANET Defined for Kids

dwarf planet

noun

Definition of DWARF PLANET for Kids

:  a heavenly body similar to a planet but too small to clear other objects from its orbit

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