positron
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ɪˌtrɒn noun Physics.
an elementary particle having the same mass and spin as an electron but having a positive charge equal in magnitude to that of the electron's negative charge; the antiparticle of the electron.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Link To Positron
Collins
World English Dictionary
positron (ˈpɒzɪˌtrɒn) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —n | |
| 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 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10
Positron
is always a great word to know.
So is slumgullion. Does it mean:
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| a stew of meat, vegetables, potatoes, etc. |
Etymonline
Word Origin & History
positron
1933, coined from posi(tive) (elec)tron.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary
positron pos·i·tron (pŏz'ĭ-trŏn')
n.
A positively charged particle of the same mass and magnititude of charge as an electron. Also called antielectron, positive electron.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
| positron (pŏz'ĭ-trŏn') Pronunciation Key
The antiparticle that corresponds to an electron. Also called antielectron. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary
positron [(poz-i-tron)]The antiparticle for an electron; it has the same mass as an electron, but carries a positive charge.
Note: Positrons are found in collisions initiated by cosmic rays.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences
The collision converts the proton into a positron, the antimatter counterpart of an electron, and a recoiling neutron.
Smash a positron and an electron and you get two or more gamma rays.
The result is that the electron shadow and the positron shadow are separated.
There is no further discussion of the detected positron source.
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