dwarf planet

dwarf plan·et

D d

Definitions of dwarf planet words

noun dwarf planet a spherical celestial body revolving about the sun, similar to a planet but not large enough to gravitationally clear its orbital region of most or all other celestial bodies. Pluto is a dwarf planet. 1
noun dwarf planet a celestial body in the solar system that has mass sufficient for its own gravity to have rendered it spherical or near-spherical, yet too small to have removed material around its orbit by gravitational disturbance or accretion. The five recognized dwarf planets are Ceres, Eris, Pluto, Haumea, and Makemake; more may exist beyond Neptune 0
noun dwarf planet (astronomy) Any astronomical body which has achieved hydrostatic equilibrium (which is the shape a body of water would take, as opposed to a small Solar System body), orbits the Sun (as opposed to a moon), and has not "cleared its neighbourhood" of competing bodies (as opposed to a planet). 0

before 1990

One of the 1% newest English words

First recorded in 1990-95

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adjective

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determiner

exclamation

A common word. It’s meaning is known to most children of preschool age. About 91% of English native speakers know the meaning and use the word.

Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

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