proton

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proton

 [pro´ton]
an elementary particle of mass number 1, with a positive charge equal to the negative charge of the electron; a constituent particle of every nucleus, the number of protons in the nucleus of each atom of a chemical element being indicated by its atomic number.

pro·ton (p),

(prō'ton),
The positively charged unit of the nuclear mass; protons form part (or in hydrogen 1 the whole) of the nucleus of the atom around which the negative electrons revolve.
[G. ntr. of prōtos, first]

proton

/pro·ton/ (pro´ton) an elementary particle that is the core or nucleus of an ordinary hydrogen atom of mass 1; the unit of positive electricity, being equivalent to the electron in charge and approximately to the hydrogen ion in mass. Symbol p.

proton

[prō′ton]
Etymology: Gk, protos, first
a positively charged particle that is a fundamental component of the nucleus of all atoms. The number of protons in the nucleus of an atom equals the atomic number of the element. Compare electron, neutron. See also atomic mass.

proton

A positively charged particle located in the nucleus of an atom of an element, the number of which governs its chemical properties.

pro·ton

(prō'ton)
The positively charged unit of the nuclear mass; protons form part (or in hydrogen 1, the whole) of the nucleus of the atom around which the negative electrons revolve.
[G. ntr. of prōtos, first]

proton

The positively-charged nucleus of a hydrogen atom. A hydrogen ion and the basis of acids.

proton,

n positively charged subatomic particle that is located in the nucleus of an atom. Its mass is equivalent to that of a neutron. The number of protons is equivalent to the atomic number.

pro·ton

(prō'ton)
The positively charged unit of the nuclear mass; protons form part (or in hydrogen 1, the whole) of the nucleus of the atom around which the negative electrons revolve.
[G. ntr. of prōtos, first]

proton (prō´ton),

n an elementary particle having a positive charge equivalent to the negative charge of the electron but possessing a mass approximately 1845 times as great; the proton is a nuclear particle, whereas the electron is extranuclear.

proton

an elementary particle of mass number 1, with a positive charge equal to the negative charge of the electron; a constituent particle of every nucleus, the number of protons in the nucleus of each atom of a chemical element being indicated by its atomic number.

proton pump
see sodium pump.
proton pump inhibitor
a class of therapeutic agents which are used to counteract the effects of proton pumps in tissues and organs, particularly used in counteracting gastric hypersecretion and acidity.
References in periodicals archive ?
As far we know, protonic currents have not been directly measured in water.
In addition, despite of the non-linear performance associated to APF, the estimation of probability curve was stable and robust, which indicated that the approximation used for higher order derivatives was valid to calculate the slopes of the binding protonic isotherms given by the LH model.
2], with [theta] taken from either Tables 1, 3 or 4 and using a protonic velocity much smaller than the near-luminal electronic velocity (i.
BMW AG (Xetra: BMW), a Germany-based automaker, has launched a limited edition of its Cruise e-Bike in Protonic Dark Silver.
2 M p-TSA protonic acid (60%) is found to be slightly higher than that of 1M HCl (55%) used.
The ring-opening polymerization of epoxynorbornene linseed oils proceeds efficiently in the presence of a photogenerated protonic acid to form a polyether.
The fully hydrated acid forms of the membranes had protonic conductivities of 0.
The combined results from these neutron techniques allows for a more thorough understanding of the factors responsible for the favorable protonic conductivity properties associated with this material.
Sulfuric acid undergoes self-ionization or autoprotolysis in the same manner as water and many other protonic solvents [4]: [Mathematical Expression Omitted] Just as the acidity of an aqueous solution is increased by increasing the concentration of [H.
Tenders are invited for Repair Of Faulty 02 Nos Protonic Controllers Of Khd Humboldt Wedag Make Jig At Madhuban Coal Washery Under Block Ii Area
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