Plu"to (?), n. [L., fr. Gr. .] Class. Myth.
The son of Saturn and Rhea, brother of Jupiter and Neptune; the dark and gloomy god of the Lower World.
Pluto monkey Zool., a long-tailed African monkey (Cercopithecus pluto), having side whiskers. The general color is black, more or less grizzled; the frontal band is white.
© Webster 1913.