This page gathers the 3,177 dictionary entries belonging to the domain “Physics”, as labelled by Wiktionary. Each word leads to its full entry: definitions, etymology, pronunciation, examples. Page 12 of 32: from “fugacity” to “gyromagnetic effect”.
- fugacity noun A measure of the relative stability of different phases of a substance under the same conditions.
- fundamental noun The lowest frequency of a periodic waveform.
- fundamental constant noun any of a set of physical quantities that play a fundamental role in basic theories
- fundamental force noun Any of the fundamental forces that act between elementary particles; each one is associated with an exchanged particle.
- fundamental interaction noun any of the fundamental forces that act between elementary particles; each one is associated with an exchanged particle
- fundamental particle noun Any of the subatomic particles that does not consist of other, smaller particles; the gauge bosons, leptons and quarks.
- funicity noun An inbuilt quality of materials that permanently “remember” their original time and place of creation.
- funicular polygon noun The figure formed by a cord or string hung from two points on which various forces act upon in the form of suspended weights.
- fuse noun A device to prevent excessive overcurrent from overload or short circuit in an electrical circuit, containing a component that melts and…
- fuse wire noun the thin wire used in fuses. In old-style fuses a new piece of wire has to be inserted when the fuse blows.
- fusion noun A nuclear reaction in which nuclei combine to form more massive nuclei with the concomitant release of energy.
- fuzzy dark matter noun A type of dark matter with very low particle mass, with concomitant very large de Broglie wavelength (such as wavelength on the order of…
- g noun A unit of gravitational acceleration.
- g-force noun The acceleration of a body relative to the freefall acceleration due to any local gravitational field, expressed in multiples of g0 (the…
- gain noun The factor by which a signal is multiplied.
- galvanometer noun A device used to indicate the presence and direction of a small electric current, especially used to detect a null or balanced condition in…
- galvanostat noun A device that maintains a constant current in an electrolytic cell during the course of a coulometric titration
- gamma noun A gamma ray or gamma-ray photon.
- gamma decay noun A nuclear reaction with the emission of a gamma ray.
- Gamow factor noun A probability factor for the chance of two nuclear particles overcoming the Coulomb barrier in order to undergo nuclear reactions.
- gapful adj Having gaps; not gapless.
- gas constant noun a universal constant, R, that appears in the ideal gas law, PV=nRT, derived from two fundamental constants, the Boltzmann constant and…
- gaseous phase noun One of the three fundamental structural phases of matter in which the thermal mobility of molecules or atoms is strong enough to permit…
- gastrophysics noun The physics involved in the formation of galaxies.
- gate noun The controlling terminal of a field effect transistor (FET).
- gate array noun an integrated circuit that is a prefabricated silicon chip circuit with no particular function except standard functions like NAND or NOR…
- gate off verb To turn something off by controlling its gate.
- gating noun The control of the flow of signals based on certain conditions or criteria.
- gauge theory noun A type of field theory in which the Lagrangian is invariant under a continuous group of local transformations.
- Gaussian beam noun A beam of electromagnetic radiation with high monochromaticity whose amplitude envelope in the transverse plane is given by a Gaussian…
- gee noun Abbreviation of gravity; the unit of acceleration equal to that exerted by gravity at the earth's surface.
- generation loss noun The loss of quality between successive copies, usually associated with magnetic audio and video media.
- geometrodynamics noun Any of several reformulations of general relativity that attempt to describe spacetime and associated phenomena completely in terms of…
- geometrogenesis noun The supposed emergence of spacetime geometry (and of matter) from interacting quantum systems (in quantum gravity theory).
- geon noun A hypothetical electromagnetic or gravitational wave held together in a confined region by the gravitational attraction of its own field…
- geoparticle noun Describing the use of elementary particles in the exploration of the internal geological structure of the Earth.
- geothermy noun The process and practice of harvesting heat produced by the Earth to be used as an energy source.
- Gerstner wave noun An exact solution of the Euler equations for periodic surface gravity waves, describing a progressive wave of permanent form on the surface…
- ghost bullet noun A bullet that cannot be found or that is untraceable through ballistic testing.
- ghost condensate noun The proposed situation in which a ghost (an excitation of a field with a wrong sign of the kinetic term) acquires a vacuum expectation…
- ghosting noun The blurry appearance of a television picture resulting from interference caused by multipath reception.
- giant magnetoresistance noun A quantum mechanical magnetoresistance effect observed in thin film structures composed of alternating ferromagnetic and nonmagnetic layers
- Gibbs free energy noun The difference between the enthalpy of a system and the product of its entropy and absolute temperature: a measure of the useful work…
- Gibbs-Thomson equation noun An equation for the structural depression in the freezing point or melting point in a confined geometry, in its compact form…
- gimmick noun A gimmick capacitor.
- Glan–Thompson prism noun A polarizing prism similar to the Glan–Foucault prism, except the air gap is replaced with a layer of cement.
- glasma noun A hypothetical precursor to quark–gluon plasma, in which the particles are condensed into a glassy or amorphous state.
- glass electrode noun Any of several electrodes, having a thin glass bulb, whose potential is dependent upon the concentration of hydrogen or other ions in the…
- glass transition temperature noun The temperature below which an amorphous material is a glassy solid and above which it is a viscous liquid
- glistening noun A fluid-filled microvacuole within a lens.
- glory noun An optical phenomenon, consisting of concentric rings and somewhat similar to a rainbow, caused by sunlight or moonlight interacting with…
- gluon noun A massless gauge boson that binds quarks together to form baryons, mesons and other hadrons and is associated with the strong nuclear force.
- GM noun Metacentric height, a measure of a ship's static stability in roll.
- gold-197 noun A stable isotope 19779Au, having 79 protons and 118 neutrons; it is the only stable isotope of gold, and the only isotope of gold that…
- Goldstone boson noun A spinless boson that necessarily appears in models exhibiting spontaneous breakdown of continuous symmetries.
- GPT noun Initialism of generalized probabilistic theory.
- gradiometer noun Any of several instruments used to measure the gradient of a physical property (such as magnetic field).
- grammage noun The integral of matter density along the path (of a cosmic ray).
- grand unification theory noun A theory that unifies the electromagnetic interaction, the weak interaction, and the strong interaction.
- granocentric adj Describing the formulation of a packing problem based on the free space around a grain (individual particle)
- graph state noun Any of a class of multipartite entangled quantum states that can be interpreted using the mathematics of graph theory
- graphino noun A massless charged relativistic quasiparticle that arises from the low-energy excitations in a 2D graphene sheet interacting with an…
- graphone noun A partially hydrogenated form of graphene that is ferromagnetic.
- graser noun A device for the coherent amplification or generation of electromagnetic radiation in the gamma ray wavelength by the use of excitation…
- grass noun Sharp, closely spaced discontinuities in the trace of a cathode-ray tube, produced by random interference.
- graticule noun Synonym of reticle (“a transparent plate marked with a crosshair, grid, or scale which is used in an optical instrument, etc., to aid in…
- gravimeter noun An instrument used to measure local variations in the gravitational field.
- graviphoton noun a hypothetical particle that emerges as an excitation of the gravitational field but whose physical properties are virtually…
- gravitation noun The fundamental force of attraction which exists between all matter in the universe that tends to draw bodies towards each other, due to…
- gravitational constant noun Ellipsis of Newtonian gravitational constant.
- gravitational convection noun The convection (carriage) of contents of a fluid, such as mass or heat, by means of currents induced in the fluid by buoyancy forces which…
- gravitational force noun A very long-range, but relatively weak fundamental force of attraction that acts between all particles that have mass; believed to be…
- gravitational mass noun The mass of an object as measured by its interaction with gravity; it is equal to its inertial mass.
- gravitational radiation noun a hypothetical wave, produced by an accelerating mass, that would be propagated at the speed of light
- gravitational singularity noun A location where the quantities that are used to measure the gravitational field become infinite in a way that does not depend on the…
- gravitoelectric adj Describing the component of a gravitational field analogous to the electric component of an electromagnetic field
- graviton noun A hypothetical gauge boson that regulates the gravitational force. It would have a spin of 2 and zero rest mass.
- gravity noun Synonym of gravitation (“the fundamental force of attraction which exists between all matter in the universe that tends to draw bodies…
- gravity darkening noun The phenomenon of a star rotating so rapidly that it is oblate, with a larger radius and thus lower surface gravity at the equator (which…
- gravity meter noun An instrument that measures the local acceleration due to gravity (strength of the gravitational field).
- gravo- prefix gravity
- green noun One of the three color charges for quarks.
- Greisen-Zatsepin-Kuzmin mechanism noun A theoretical upper limit on the energies of ultra-high-energy cosmic rays based on interactions with the cosmic microwave background.
- grid noun The third (or higher) electrode of a vacuum tube (triode or higher).
- ground noun An electrical conductor connected to the earth, or a large conductor whose electrical potential is taken as zero (such as a steel chassis).
- ground level noun Ground state, the stationary state of lowest energy of a particle.
- ground loop noun A (usually unwanted) current that flows between two points that are meant to be at the same potential, but are not.
- ground out verb To provide proper grounding for a circuit.
- grounded adj Of or pertaining to an electrical conductor which is connected to earth; earthed.
- grounding noun The interconnecting metal chassis or frame of a device, appliance, machine, or metal raceway via a designated conductor to earth at the…
- group velocity noun the propagation velocity of the envelope of a modulated travelling wave, which is considered as the propagation velocity of information or…
- GST noun One of various compounds of germanium, antimony, and tellurium used as a phase change material, including GeSbTe.
- GTO noun Initialism of gate turn-off.
- Gunn effect noun The generation of high-frequency (usually microwave) oscillations within a semiconductor whenever an applied DC voltage exceeds its…
- Gunning transceiver logic noun A kind of logic signaling used to drive electronic backplane buses, having a voltage swing between 0.4 and 1.2 volts—much lower than that…
- gyrator noun An electric circuit that introduces a phase shift of 180° in one direction, but none in the opposite direction
- gyrofluid noun A fluid that is undergoing gyroscopic movement; used attributively to describe the flow effects of rotation.
- gyrofrequency noun The frequency of the circular motion of a charged particle in the presence of a uniform magnetic field.
- gyrokinetics noun The branch of physics concerned with the helical flow of particles in the magnetic field of a plasma
- gyromagnetic effect noun an effect that arises from the relation between the angular momentum and the magnetization of a magnetic substance