Definition of "pluton" []

• A body of igneous rock formed beneath the surface of the earth by consolidation of magma. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "My major issue now is that Ceres is not compositionally very similar to the outer solar system objects, so this "pluton" designation is different than our "jovian" and "terrestrial" designations."
• "Not to mention that "pluton" already has a geological meaning."
• "Amelia say Pluto should be called neither planet nor dwarf planet, but "pluton" or "Plutette.""