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 19 of 32: from “multicollision” to “notch”.
- multicollision adj Involving multiple collisions (of particles etc.).
- multiferroic adj Having multiple ferroic properties (e.g. both ferroelectric and ferromagnetic)
- multigrid adj Having more than one grid electrode (of electronic vacuum tubes)
- multijet adj Of or pertaining to multiple jets (narrow cones of particles).
- multiloop noun A disconnected Wilson loop.
- multipartite adj Describing a system of three or more quantum states
- multiplet noun A spectral line that has multiple components.
- multiplier noun Any of several devices used to enhance a signal
- multipolar adj Having more than two poles.
- multipolaron noun A quasiparticle composed of multiple polarons
- multiquark adj Involving, or composed of multiple quarks
- multistring noun One of Multiple simultaneously vibrating strings.
- multiverse noun The hypothetical group of all the possible universes in existence.
- multivibrator noun An electronic circuit used to implement a variety of simple two-state systems such as oscillators, timers, and flip-flops.
- muon noun An unstable elementary particle in the lepton family, having similar properties to the electron but with a mass 207 times greater.
- muonium noun An exotic atom formed when a positively charged muon (an anti-muon) and an electron are bound by their mutual electrical attraction…
- mushroom verb To form the shape of a mushroom when striking a soft target.
- n-type adj (Of a semiconductor) in which conduction is due to the movement of electrons rather than positive holes.
- nacelle noun The part between the rotor and tower of a wind turbine.
- naked adj Not hidden within an event horizon and thus observable from other parts of spacetime.
- nanoanalysis noun The analysis of a surface or material at the nanometer level
- nanobiophotonics noun The application of nanotechnology to biological research; especially the development of advanced imaging systems
- nanobody noun A nanoscale body.
- nanocantilever noun A strip of silicon carbide, a few hundred nanometres in width, whose vibrational frequency varies in proportion to the mass of objects…
- nanodiffraction noun A diffraction technique that utilizes focused beams of electrons or X-rays to investigate the structural properties of materials at the…
- nanoelectronics noun The use of nanotechnology to create electronic components; the study and use of nanoscale electronic components
- nanofluidics noun The study of the behaviour of fluids confined in nanoscale structures.
- nanofocusing noun The use of arrays of very sharp points, or tiny gaps between particles, to control the concentration of light energy on nanometre scales…
- nanohertz noun A unit of frequency equal to one thousand-millionth (10⁻⁹) of a hertz, about once every 32 years
- nanohole noun A hole of nanoscale dimensions; but especially one of an array of such holes on a semiconductor surface.
- nanoscope noun Any microscope that has a resolution measured in nanometres, especially one that uses a beam of atoms instead of light
- nanotomography noun The nanoscale tomography of a material (especially of a nanoparticle), especially by the use of scanning electron techniques
- narrow-width effect noun An anomalous threshold voltage behavior of certain sub-halfmicron semiconductors due to migration of specific elements and local oxidation
- Navier-Stokes equation noun A partial differential equation which describes the conservation of linear momentum for a Newtonian incompressible fluid.
- near field noun The region within about half a wavelength from an electrically small antenna. More specifically it is the region within the radiansphere.
- nebenion noun Any ion near another one that is involved in transport through a membrane, and that is influencing its transport properties (especially one…
- Nebraska Ice noun Two dimensional bilayer ice I, a phase of water ice that is two-dimensional and can shrink when frozen.
- nebulium noun A supposed chemical element proposed as a result of spectral analysis of light from a nebula; the emission lines concerned are now known to…
- negative adj Of electrical charge of an electron and related particles
- negative crystal noun A uniaxial crystal, such as one of calcite, in which the extraordinary wave travels faster than the ordinary wave
- negative feedback noun A feedback loop in which the output signal of a system is amplified with a net negative gain and added to the input signal, before the main…
- negative logic noun The use of the higher(positive) voltage level to represent the Boolean value 0 and the lower voltage(negative) level to represent the…
- negativity noun The characteristic of having a negative charge.
- negentropic adj Having negative entropy
- negentropy noun The difference between the entropy of a system and the maximum possible entropy of the same system.
- nematic adj Whose molecules align in loose parallel lines.
- nematogenic adj Describing a solid that forms a nematic liquid crystal when heated.
- neon-20 noun The major stable isotope of neon, 2010Ne, having ten protons and ten neutrons; it amounts to over 90% of the element in nature
- neon-21 noun A rare stable isotope of neon, 2110Ne, having ten protons and eleven neutrons; it amounts to less than 0.3% of the element in nature
- neon-22 noun A minor stable isotope of neon, 2210Ne, having ten protons and twelve neutrons; it amounts to about 9% of the element in nature
- neper noun A non-SI unit of the attenuation (or sometimes gain) of field and power quantities such as electronic signals; the natural logarithm of a…
- nephogram noun A graphical depiction of a physical quantity that resembles a cloud.
- Nernst effect noun A thermoelectric (or thermomagnetic) phenomenon observed when a sample allowing electrical conduction is subjected to a magnetic field and…
- net noun A conductor that interconnects two or more component terminals.
- net zero adj Of a building or system, generating as much energy through solar, wind, and other renewable resources as it uses from the electricity…
- neuroelectronic adj Describing any electronic device that interfaces with, (or was otherwise designed for use with), nerves, neurons or the nervous system.
- neutral adj Neither positive nor negative; possessing no charge or equivalent positive and negative charge such that there is no imbalance.
- neutral conductor noun A wire or cable that returns electrical current from the consumer to the power supply, usually color-coded with a blue or white casing.
- neutral current noun An exchange current which carries no electric charge and mediates certain types of electroweak interactions.
- neutral equilibrium noun An equilibrium in which a small disturbance has no tendency to either return to its original state or to move further away from its…
- neutral section noun A dead section of overhead line for supplying power to trains between two live sections, used to separate two power supplies, different…
- neutron noun A subatomic particle forming part of the nucleus of an atom and having no charge; it is a combination of an up quark and two down quarks.
- neutron diffraction noun The interference process which occurs when neutrons are scattered by the atoms within solids, liquids and gases.
- neutron drip line noun The jagged line, on a chart showing the number of protons and neutrons of all known isotopes, beyond which neutron-rich nuclei are unstable…
- neutron spectrometry noun The field of study in which neutrons are used as a probe for measuring the excited states of nuclides.
- neutronium noun A material composed entirely of neutrons.
- neutronization noun The process, such as within a collapsing star, in which protons and electrons fuse to form neutrons and release neutrinos.
- Newton's rings noun A pattern of interference of light characterized by concentric rings that is caused by light's reflection from two surfaces, one of which…
- Newtonian adj Of or relating to classical physics that does not take relativity into account.
- nigger noun An impurity in the covering of an electrical conductor which serves to make a partial short circuit, and thus becomes sufficiently heated…
- nitrogen-13 noun A radioactive isotope of nitrogen, 137N, having seven protons and six neutrons, and a half-life of less than ten minutes; it is used in…
- nitrogen-14 noun A stable isotope of nitrogen, 147N, having seven protons and seven neutrons; it accounts for over 99% of the natural element.
- nitrogen-15 noun A stable isotope of nitrogen, 157N, having seven protons and eight neutrons; it accounts for less than 0.4% of the natural element; it is…
- nitrogenlike adj Having the same electronic structure as a nitrogen atom
- Nixie tube noun An obsolete electronic device for displaying numerals or other information by means of glow discharge.
- nMOS noun A MOSFET with an n-type channel (a semiconductor doped with an element creating a surplus of electron carriers).
- nMOSFET noun A type of metal–oxide–semiconductor field-effect transistor (MOSFET) that utilizes an n-type channel, conducting when a voltage voltage…
- no-load adj Not supplying power; open-circuited.
- nodal analysis noun A method of solving for the voltages of nodes in an electric circuit, in which a system of equations is written for the currents (using…
- node noun A point along a standing wave where the wave has minimal amplitude.
- non-baryonic dark matter noun dark matter comprising elementary particles whose composition is as yet unknown, but is presumed to be unlike normal protons, neutrons and…
- non-essential prime implicant noun On a Karnaugh map: a prime implicant which does not cover any 1 which cannot covered by some other prime implicant.
- non-Newtonian fluid noun a fluid whose stress at each point is not linearly proportional to the strain rate at that point; i.e. its viscosity depends on the applied…
- nonclassical adj Not governed by the rules of Newtonian mechanics, or by the classical theory of electromagnetism.
- noncommutative geometry noun A version of C*-algebra which does away with commutativity, and the geometry which would be generated by/associated with such a modified…
- nonconservation noun A failure to abide by a conservation law.
- nondegenerate adj Not degenerate.
- nondimensionalization noun The partial or full removal of units from an equation involving physical quantities by a suitable substitution of variables, in order, for…
- nonet noun A group of nine nuclear or subatomic particles.
- nonpermeable adj Having the same magnetic permeability as that of free space, so that the material in question has a magnetic permeability μ=μ₀ (where μ₀ =…
- nonpolar adj Not containing a dipole.
- nonpotential adj Having no potential energy
- nonuniform adj Of a flow, not having the same instantaneous velocity at all points.
- Nordtvedt effect noun A test of the strong equivalence principle of general relativity that relies on detecting polarization in the orbit of the moon in the…
- normal adj In which all parts of an object vibrate at the same frequency (a normal mode).
- normal hydrogen electrode noun Alternative name for the standard hydrogen electrode; an electrode with a standard electrode potential of zero; used as a standard against…
- north noun The positive or north pole of a magnet, which seeks the magnetic pole near Earth's geographic North Pole (which, for its magnetic…
- north pole noun The positive pole of a magnetic dipole that seeks geographic north.
- northbridge noun A microchip connected directly to the CPU (unlike the southbridge) and thus responsible for tasks that require the highest performance.
- notch noun A portion of a mobile phone that overlaps the edge of the screen, used to house a camera, sensors etc. while maximizing screen space.