pro·ton
(prō′tŏn′)n. Abbr. p
The stable, positively charged nucleon, having a mass 1,836 times that of an electron and being a baryon composed of two up quarks and one down quark. The proton is a basic component of all atomic nuclei and the nucleus of the protium isotope of hydrogen.
pro·ton′ic adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
proton
(ˈprəʊtɒn)n
(General Physics) a stable, positively charged elementary particle, found in atomic nuclei in numbers equal to the atomic number of the element. It is a baryon with a charge of 1.602176462 × 10–19 coulomb, a rest mass of 1.672 62159 × 10–27 kilogram, and spin
[C20: from Greek prōtos first]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
pro•ton
(ˈproʊ tɒn)n.
a positively charged elementary particle found in all atomic nuclei, the lightest and most stable of the baryons, and having a positive charge of 1.602 x 1019 coulombs: the number of protons in an atom equals that element's atomic number.
[1915–20; n. use of Greek prôton, neuter of prôtos first]
pro•ton′ic, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
pro·ton
(prō′tŏn′) A stable subatomic particle that has a positive electric charge and is part of the nucleus of an atom. Its charge is opposite to that of an electron but is equal in magnitude. A proton's mass is 1,836 times that of an electron. See more at atom.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
proton
1. One of the three basic particles in the atom, found in the nucleus with the neutron. It has positive charge.
2. A positively charged subatomic particle.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
| Noun | 1. |  proton - a stable particle with positive charge equal to the negative charge of an electronhydrogen ion - a positively charged atom of hydrogen; that is to say, a normal hydrogen atomic nucleus nucleon - a constituent (proton or neutron) of an atomic nucleus |
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
proton
proton
protoni
proton
proton
proton
róteind
protonas
protons
protón
proton
proton
proton
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
Collins English/French Electronic Resource. © HarperCollins Publishers 2005
proton
n → Proton nt
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
proton
(ˈprəuton) noun a particle with a positive electrical charge, forming part of the nucleus of an atom.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
pro·ton
n. protón, partícula en el núcleo de un átomo cuya carga positiva y masa es 1836 veces la de un neutrón. La terapia especializada con uso de partículas de protón se usa en tratamientos de cáncer de la próstata, del cerebro y del cáncer de la mama.
English-Spanish Medical Dictionary © Farlex 2012