antiproton[an′tī prō′tän′; -tē-, -ti-]
antiproton definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
the antiparticle of the proton, with the same mass as the proton but a negative charge
antiproton definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The antiparticle of the proton.
antiproton - Science Definition
The antiparticle that corresponds to the proton.