Pluto - Definition
pluto
n 1: a cartoon character created by Walt Disney
2: (Greek mythology) the god of the underworld in ancient
mythology; brother of Zeus and husband of Persephone [syn:
Pluto, Hades, Aides, Aidoneus]
3: 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"