positron

[ poz-i-tron ]

/ ˈpɒz 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.

Also called antielectron, positive electron.

Origin of positron

First recorded in 1930–35; posi(tive) + (elec)tron

Words nearby positron

positive stain, positive theology, positive vetting, positivism, positivity, positron, positron emission tomography, positronium, posole, posology, poss.

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences 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|DAILY BEAST
Another highly regarded method was PET, or positron emission tomography.
Illustrating the Brain|Casey Schwartz|December 10, 2009|DAILY BEAST
As I am the only scholar in my field—the polarity of the positron—I have never been asked for information.
Joy Ride|Mark Meadows
The design of the electron brain had completely ignored the polarity of the positron.
Joy Ride|Mark Meadows

These units are the positron, the negatron, and the neutron.
Cube Root of Conquest|Roger Phillips Graham

British Dictionary definitions for positron

positron

/ (ˈpɒzɪˌtrɒn) /

noun

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

Word Origin for positron

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

Cultural definitions for positron

positron

[ (poz-i-tron) ]

The antiparticle for an electron; it has the same mass as an electron, but carries a positive charge.

notes for positron

Positrons are found in collisions initiated by cosmic rays.

Medical definitions for positron

positron

[ pŏz′ĭ-trŏn′ ]

n.

A positively charged particle of the same mass and magnitude of charge as an electron.antielectron positive electron

Scientific definitions for positron

positron

[ pŏz′ĭ-trŏn′ ]

The antiparticle that corresponds to an electron. Also called antielectron

单词	positron
释义	positron [ poz-i-tron ] / ˈpɒz 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. Also called antielectron, positive electron. Origin of positron First recorded in 1930–35; posi(tive) + (elec)tron Words nearby positron positive stain, positive theology, positive vetting, positivism, positivity, positron, positron emission tomography, positronium, posole, posology, poss. Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences 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\|DAILY BEAST Another highly regarded method was PET, or positron emission tomography. Illustrating the Brain\|Casey Schwartz\|December 10, 2009\|DAILY BEAST As I am the only scholar in my field—the polarity of the positron—I have never been asked for information. Joy Ride\|Mark Meadows The design of the electron brain had completely ignored the polarity of the positron. Joy Ride\|Mark Meadows These units are the positron, the negatron, and the neutron. Cube Root of Conquest\|Roger Phillips Graham British Dictionary definitions for positron positron / (ˈpɒzɪˌtrɒn) / noun 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 Word Origin for positron 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 Cultural definitions for positron positron [ (poz-i-tron) ] The antiparticle for an electron; it has the same mass as an electron, but carries a positive charge. notes for positron 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. Medical definitions for positron positron [ pŏz′ĭ-trŏn′ ] n. 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. Scientific definitions for positron positron [ pŏz′ĭ-trŏn′ ] 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.
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