proton

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Related to protonic: Protopic, Protonix IV

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.
Ballard Power Systems Inc - Bloom Energy Corp - Clearedge Power - Fuelcell Energy - Hydrogenics Corporation - Nuvera Fuel Cells - Oorja Protonics - Plug Power Inc - Protonex Technology Corporation - Relion Inc
AFC Energy PLC - Ballard Power Systems Inc - Bloom Energy Corp - Ceramic Fuel Cells Limited - Ceres Power Holdings Plc - Clearedge Power - Fuelcell Energy - GS Caltex - Genport SRL - Horizon Fuel Cell Technologies - Hydrogenics Corporation - JX Nippon Oil & Gas - Nedstack Fuel Cell Technology BV - Nuvera Fuel Cells - Oorja Protonics - Panasonic Corporation - Plug Power Inc - Protonex Technology Corporation - Relion Inc - SFC Energy Ag - Topsoe Fuel Cell - Toshiba Fuel Cell
As reported in the literature, proton conducting polymer electrolytes facilitate the formation of protonic defects and provide strongly labile proton donor and acceptor functions (5).
Because the doping of protonic acid leads to the decline of electron cloud density and the raise of charge delocalization, this shift of the characteristic peaks appears in FTIR spectra.
The Silicon Genesis PIII system has demonstrated operation in what is referred to as the Protonic Mode(TM) for implantation of ions.
to produce a sulfonated polysulfone matrix filled with a solid protonic conductor.
In the Protonic Mode, H+ purity in excess of 90 percent has been achieved and maintained.
Polyaniline (PANI) doped with protonic acids is an important intrinsically conducting polymer owing to its relatively high conductivity, good processability, and environmental stability (2).
Rest of Europe By Application Portable Stationary Transportation By Technology Polymer/Proton Exchange Membrane (PEM) Fuel Cell Direct Methanol Fuel Cell (DMFC) Alkaline Fuel Cell (AFC) Phosphoric Acid Fuel Cell (PAFC) Molten Carbonate Fuel Cells (MCFC) Solid Oxide Fuel Cell (SOFC) Direct Carbon Fuel Cell (DCFC) Zinc Air Fuel Cell (ZAFC) Protonic Ceramic Fuel Cell (PCFC) Microbial Fuel Cell (MFC) By Fuel Hydrogen Natural Gas/ Methane Methanol Anaerobic Digester Gas Others
The conductivities of protonic acid-doped PANI-ES in their conductive emeraldine salt formed at room temperature were 0.
It is different from other conjugated conducting polymers in that it can be doped to a conducting form without changing the number of [pi]-electrons through protonation by exposure to an aqueous protonic acid solution [4].