proton
a positively charged elementary particle that is a fundamental constituent of all atomic nuclei. It is the lightest and most stable baryon, having a charge equal in magnitude to that of the electron, a spin of ½, and a mass of 1.673 × 10-27 kg. Symbol: P
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Origin of proton
1Other words from proton
- pro·ton·ic, adjective
Words Nearby proton
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use proton in a sentence
That’s some 30 times the energy of the protons that race around the world’s largest and most powerful particle accelerator, the Large Hadron Collider.
Einstein’s theory of general relativity unveiled a dynamic and bizarre cosmos | Elizabeth Quill | February 3, 2021 | Science NewsPerhaps the most familiar and ubiquitous of these is the proton.
A Breakthrough in Measuring the Building Blocks of Nature - Facts So Romantic | Subodh Patil | January 8, 2021 | NautilusAstronomers have a clear idea of how solar storms—waves of electrons, protons, and atoms the sun shoots toward our planet—affect human technologies like power grids, communications, GPS navigation, air travel, and satellites.
Images like this one could help reveal the Sun’s inner workings | María Paula Rubiano A. | December 11, 2020 | Popular-ScienceAnother is to explore how the proton's charge influences the behavior of an electron orbiting it in a hydrogen atom, which consists of only a single proton and electron.
Physics is somewhat less broken, but still not quite right | John Timmer | December 2, 2020 | Ars TechnicaIn our star, the vast majority come from the direct fusing of protons.
We still don’t really know what’s inside the sun—but that could change very soon | Charlie Wood | November 30, 2020 | Popular-Science
Deuterium is an isotope of hydrogen containing a proton and neutron in its nucleus, while normal hydrogen has only a proton.
You have the atom, which has the neutron, the electron, the proton.
I drank an International proton Pale Ale and opted not to follow it up with a Plutonium Porter.
At the Hanford Nuclear Reservation, a Steady Drip of Toxic Trouble | Eric Nusbaum | February 24, 2013 | THE DAILY BEASTI made every last one of them, from the hunky handsome proton to the waifish, Starbucks-named neutrino.
Round a central sun, termed a proton, whirl a number of electrons in rhythmic motion and incessant swing.
Spirit and Music | H. Ernest HuntThe size ratio of these particles to protons is somewhat like the ratio of an individual proton to a large star.
The Untouchable | Stephen A. KallisInformation from the wire chambers defines proton trajectories, and pulse heights from the counters determine their energies.
On-Line Data-Acquisition Systems in Nuclear Physics, 1969 | H. W. Fulbright et al.The PDP-9 first tries to reconstruct a vertex from the proton trajectories.
On-Line Data-Acquisition Systems in Nuclear Physics, 1969 | H. W. Fulbright et al.The number at the lower left of each element symbol in the above reaction is the proton number.
A Brief History of Element Discovery, Synthesis, and Analysis | Glen W. Watson
British Dictionary definitions for proton
/ (ˈprəʊtɒn) /
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 1/2
Origin of proton
1Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for proton
[ prō′tŏn′ ]
A stable subatomic particle in the baryon family having a mass of 1.672 X 10-24 grams (1,836 times that of the electron) and a positive electric charge of approximately 1.602 X 10-19 coulombs. Protons make up part of the nucleus of all atoms except hydrogen, whose nucleus consists of a single proton. In neutral atoms, the number of protons is the same as the number of electrons. In positively charged atoms, the number of protons is greater than the number of electrons, and in negatively charged atoms electrons outnumber protons. Protons are believed to be composed of two up quarks and one down quark. See Table at subatomic particle.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for proton
[ (proh-ton) ]
An elementary particle with a positive charge, found in the nucleus of an atom.
Notes for proton
Notes for proton
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.
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