proton

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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.

[From Greek prōton, neuter of prōtos, first; see per in Indo-European roots.]

pro·ton′ic adj.

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]

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.

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.

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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.proton - a stable particle with positive charge equal to the negative charge of an electronproton - a stable particle with positive charge equal to the negative charge of an electron
hydrogen 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
Translations
proton
proton
protoni
proton
proton
proton
róteind
protonas
protons
protón
proton
proton
proton

proton

[ˈprəʊtɒn] Nprotón m

proton

[ˈprəʊtɒn] nproton m

proton

nProton nt

proton

[ˈprəʊtɒn] nprotone m

proton

(ˈprəuton) noun
a particle with a positive electrical charge, forming part of the nucleus of an atom.

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.
References in periodicals archive ?
The cyclotron, which is being installed and maintained by IBA (Ion Beam Applications), generates the protons used in proton beam therapy treatment.
In the latest step toward carrying out collisions of lead ions in the nearly 17-mile ring of the Large Hadron Collider (LHC), the operations team at CERN on Thursday began colliding protons at the lower energy of 2.
New research shows that protons released by roundworms' intestines trigger surrounding muscles to contract, causing the worm to defecate.
A setup was determined which should make it possible to confine UCN with negligible losses and detect the protons emerging from [beta]-decay with high efficiency: stacked superconducting solenoids create the magnetic storage field, an electrostatic extraction field inside the storage volume assures high proton collection efficiency.
Third, protons slow down abruptly after traversing a distance inside the body at a slowly diminishing speed.
For twenty years, it had been assumed that the atomic nucleus was made up of protons and electrons, since these were the only two subatomic particles known.
Mr Moran said: "The demand for proton beam therapy is on the rise and at least 10% of patients who receive traditional radiotherapy would actually be treated more effectively with protons.
Protons have a low LET, so scientists expected them to behave as X rays do in their DNA-damaging capability, notes Sutherland.
238(11) [13] from a measurement of electrons and protons in coincidence, which is the first determination to date.
As soon as the neutron was discovered by Chadwick (see above), Heisenberg (see 1925) pointed out that the atomic nucleus must be made up of protons and neutrons rather than protons and electrons.
We are very excited to be able to bring the power of protons to patients," said William Hartsell, M.