Pluto

nouns

a cartoon character created by Walt Disney

Pluto

is an instance of (narrower)

an imaginary person represented in a work of fiction (play or film or story)

"she is the main character in the novel"

(Greek mythology) the god of the underworld in ancient mythology; brother of Zeus and husband of Persephone

Aides, Aidoneus, Hades, Pluto

a small planet and the farthest known planet from the sun; it has the most elliptical orbit of all the planets

"Pluto was discovered by Clyde Tombaugh in 1930"

Pluto

is a member of

the sun with the celestial bodies that revolve around it in its gravitational field

is an instance of (narrower)

(astronomy) a major planet whose orbit is outside the asteroid belt (Jupiter, Saturn, Uranus, Neptune, Pluto)

is an instance of (narrower)

any of the planets whose orbit lies outside the earth's orbit