Origin of positron
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for positron
The uncertainty in the positron counts are huge at the high energy end of the AMS-02 results.Still No Dark Matter from Space Station Experiment
Matthew R. Francis
September 21, 2014
Another highly regarded method was PET, or positron emission tomography.Illustrating the Brain
December 10, 2009
These units are the positron, the negatron, and the neutron.Cube Root of Conquest
Roger Phillips Graham
The design of the electron brain had completely ignored the polarity of the positron.
As I am the only scholar in my field—the polarity of the positron—I have never been asked for information.
- physics the antiparticle of the electron, having the same mass but an equal and opposite charge. It is produced in certain decay processes and in pair production, annihilation occurring when it collides with an electron
C20: from posi (tive + elec) tron
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for positron
1933, coined from posi(tive) (elec)tron.
Online Etymology Dictionary, © 2010 Douglas Harper
- A positively charged particle of the same mass and magnitude of charge as an electron.antielectron positive electron
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- The antiparticle that corresponds to an electron. Also called antielectron
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Positrons are found in collisions initiated by cosmic rays.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.