From the WaPo: Pluto Is No Longer a Planet, Astronomers Say
The new definition of planet is "a celestial body that is in orbit around the sun, has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a ... nearly round shape, and has cleared the neighborhood around its orbit."
As for Uranus, it has definitely cleared the neighborhood.
Poor Pluto. No longer a planet. Simply Mickey Mouse's pet. *sigh*