from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An elementary particle having the same mass and magnitude of charge as an electron but exhibiting a positive charge; a positive electron. Also called antielectron.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The antimatter equivalent of an electron, having the same mass but a positive charge
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an elementary particle with positive charge; interaction of a positron and an electron results in annihilation
posi(tive) + (elec)tron.(American Heritage® Dictionary of the English Language, Fourth Edition)