Physics Dictionary



This dictionary is a comprehensive reference for all level of students.This dictionary consists of a collection of more than 3000 words in physics which are helpful for all level of physicists. Collection constitutes terms from Classical Mechanics, Electromagnetism, Electrostatics, Magnetics, Thermodynamics, Solid State physics, Nuclear Physics.

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A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z


A   


Absolute pressure 
Absolute Zero
Acceleration
Activator
Absorbed dose of radiation
Acceleration due to gravity (g)
Accelerator
Adhesion
Ampere
Amplitude
Angular acceleration
Anti-node
Angular momentum
Anelasticity
Active devices
Activity
Archimedes principle
Atmospheric pressure
Atom
Acoustics

Alpha particle
Adiabatic process
Angle of minimum Deviation
Astronomy
Amplitude
Atomic number
Allotropy
Annealing
Avogadros principle
Abberation of star light
Absorbing power
Angular displacement
Anomalous dielectric dispersion
Albedo
Axis of Precession
Alpha particle spectrum
Aufbaus principle
Anomalous Zeeman Effect
Antistokeslines


B


Barns
Boyles law
Buoyancy
Black body
Bernoullis principle
Brownian motion
Bose Einstein Condensation
Bulk Stress
Balmer series
Binding energy
Brackett series
Boiling point
Brazing
Bonding energy
Body centered cubic
Burgers vector Barometer
Beats 
Bremstrahlung
Beta particle
Black body
Bolometer
Brewster’s angle of incidence
Brewster’s law
Binding energy
Bel
Boron-10
Baking

C

Centripetal force
Centrifugal force
Critical mass
Centre of gravity
Cohesion
Charles law
Critical temperature
Critical pressure
Critical volume
Compton Effect
Collision
Conical pendulum
Coefficient of Linear expansion
Coefficient of areal expansion
Coefficient of volume expansion
Canonical Ensemble
Configuration space
Causality Law
Critical magnetic field
Coherence length
Centripetal acceleration
Crystal
Celsius

Crossection
Closed system
Conservative forces
Conservation of momentum
Conduction
Convection
Covalent bond
Curie
Choke coil
Center of mass
Conservation of angular momentum
Critical angle
Canonical ensemble
Constancy of speed of light
Coulombs law
Capacitance
Cohesion
Cobalt-60
Cold welding
Crystalline defect
Ceramic
Cermet
Curie temperature
Clausius Theorem


D


Dielectric Constant
Displacement
Dielectric strength
Debroglies Hypothesis
Debroglie wavelength
Drift velocity
Dulong & Petit’s law
Dispersion of light
Dispersive power
Direct band gap semiconductor
Davisson – Germer experiment
Debye
Degrees of freedom

Distance
Dilute Magnetic Semiconductor
Dispersive power of grating
Derived Air Concentration
Dose equivalent 
Dew point
Damped vibration
Deewar flask
Displacement current
Displacement
Dulong & Petit’s law
Ductility
Devitrification
E


Effective mass of electron
Electron Volt
Elastic collision
Electric current
Electromotive force
Entropy
Eddy current
Equilibrium of a rigid body
Elasticity
Efficiency of engine
Emissivity
Escape velocity
Elastic fatigue
Equation of continuity
Ensemble
Electron gun
Equal Apriori probability
Ergodic hypothesis
Electromagnetic interactions
Elastic Deformation
Equation of motion of rigid body
Exposure
Elastic deformation
External work


F

Friction
Forced vibration
Fictious force (Pseudo force)
Focaults Pendulum
Fermions
Fermi Level
Forward biased diode

Feedback
Franck & Hertz experiment
Fraunhofer lines
Fluid
Face centered cubic crystal structure
Fluidpressure
Franck-Condon principle


G

Gravitational potential
Geo-stationary satellite
Grand Canonical Ensemble
Gauss’s theorem of magnetism
Gauss’s theorem of electrostatics
Gauge pressure
Gamma rays
Gravitational force
Gravitational Intensity
Gray
Grain boundary


Gas
Gravitational force
Geocentric theory
Gravitational potential
Geo-stationary satellite
Gravitational mass
Grand canonical ensemble
Gyroscope
Gyration
Gauge pressure
Geiger-Nuttal law

H


Hall Effect
Hologram
Heat
Heat engine
Heliocentric theory
Hamilton’s principle
Humphrey series
Hologram

Heat capacity
Hoppers
Hydrogen bond
Hexagonal closely packed crystal structure
Hooke’s law
Hardness
Hole

I


Identical particles
Ionizing Radiation
Indirectband semiconductor
Isobars
Isotope
Isotones
Isomers
Interference of light
Irreversible change
Intensity of radiation
Impulse
Inelastic collision
Inertial frame
Inertial mass
Ideal fluid
Invariant tensor
Ionic bonding
Interfacial defect
Impurity diffusion
J

Joules Expansion
Joules Law

K


Kilogram
Kirchhoff’s first Law
Kirchhoff’s second Law
Kelvin’s Thermodynamic Scale
Kirchoff’s law (Thermal Radiation)
Kilowatt hour (KWH)

Kepler’s first law
Kepler’s second law
Kepler’s third law
Kelvin’s statement of second law of Thermodynamics
Kilo Calorie
L


Luminescence
Longitudinal wave motion
LINEAC(Linear Accelerator)
Latent heat (Heat of transformation)
Lienard Wiechart Potential
Lorentz-Fitzerald contraction
Larmor’s precession
Laws of refraction
Lissajous figures
Lattice parameters
LASER
Law of Conservation of energy
Law of static friction
Law of kinetic friction
Law of Conservation of angular momentum
Longitudinal Stress
Longitudinal strain
London penetration depth
Lyman series
Long range alpha particles
Latent heat

M


Mean free path
Moderation
Miller Indices
Magnetic susceptibility
Mechanical Equilibrium
Mechanical Equivalent of heat
Microscope
Moment of Inertia
Micro canonical ensemble
Mutual Induction
Milliman’s Theorem
Mass defect
Molecular spectrum
Mirror Nuclei
Meissner effect
Mass number
Molecular range
Mobility
Molar specific heat
Moseley’s Law for X-rays
Manometer
Mean free path
Modulus of resilience
Molecular weight
Magnetization
Martensite
Mole

N

Newton’s first law
Newton’s second law
Newton’s third law
Non-conservative force
Non-polar dielecric
Newton’s universal law of gravitation
Nano materials
Normal force
Nucleon
Neutrino


Node
N-type semiconductor
Newton’s law of cooling
Non-Inertial frames of reference
Norton’s theorem
Negative feedback
Non-ferrous alloy
Norton’s theorem
Nutation


O

Oscillation
Ohmic conductor
Orbital velocity
Outgassing
Outgassing constant
Oxidation
Oscillator (electric)
Ohm
Open system
Optics
P


Pyrometer
Proton
Positron
Principle of Calorimetry
Photo conductor
Poynting’s theorem
Poynting vector
Polarization (EM wave)
Polarisation
Parking orbit
Principle of equivalence
Prism
Photo detector
Penetration depth
Polymorphism
Phase (SHM)
Plastic deformation
Pickling
Progressive wave motion
Pair production
Para-magnetism
Pascal’s principle
Principle of Calorimeter
Photon
Photo Conductor
Polarization

Poynting’s Theorem
Poynting’s Vector
Pyrometer
Periodic table
Poly-crystal
Phase
Polarization (ionic)
Powder metallurgy
Precipitation hardening
P- type semiconductor
Polar molecule
Pressure law
Prevost’s theory of heat exchange
Principle of equal aprioriprobabiltiy
Perpendicular Axes Theorem
Parallel Axes Theorem
Parking orbit
Periodic motion
Phase constant
Plasticity
Principle of invariance of charge
Photoelectric effect
Pair production
Phase point
Phase space
Pseudo Vector


Q



R


Refrigerant
Reversible cell
Radiant Energy
Radiation Exposure
Radiation Absorbed Dose
Refrigerant
Reversible cell
Relative Humidity
Roentgen Equivalent Man (REM)
Roentgen
RAD (Radiation Absorbed Dose)
Real Image
Rainbow
Rest mass
Rayleigh scattering
Rutherford
Resonant frequency (electricity)
Rigid body
Roughing Pump
Resilience
Reduction
Residual stress
Refrigerator
Reversible change
Radiant energy (heat)
Radiator (thermal)
Relative emittance
Reflecting power
Rolling friction
Rotatory motion
Radius vector
Restoring force
Resonance absorption (Dielectric)
Reduction
Reverberation
Reciprocity theorem
Rigid body
Radius of gyration
Reactive sputtering

S


Saturation vapor pressure
Sievert
Seebeck effect
Specific gravity of fluid
Skin effect
Snell’s law
Spectrum
Sputtering
Straggling
Superconductor
Specific heat
Specific heat at constant volume
Specific heat at constant pressure
Stefan’s Boltzmann law
Saturation vapor pressure
Sievert
Schottky defect
Skin depth
Skin effect
Sputtering
Simple Harmonic Motion
Specific Heat
Stefan’s-Boltzmann law
Sphere of influence 
Surface energy
Simple pendulum

Soldering
Single Crystal
Secondary bonds
Self diffusion
Shear
Softening point (glass)
Soft magnetic material
Solubility limit
Specific strength
Steady state diffusion
Strain (engineering)
Structure
Super cooling
Super heating
Spectral emissive power
Spectral energy density
Stefan’s law
Stefan– Boltzmann’s law
Solar constant
Satellite
Shearing strain
Strain energy
Statistical Mechanics
Self induction
Strange particles
Silsbee effect

T


Temperature
Tephigram
Thermodynamics
Thermodynamics Ist law
Thermodynamics IInd Law
Thermodynamics IIIrd law
Thermal Neutron
Thermometer
Thermal equilibrium
Thermalization of Neutrons
Thermionic Emission
Transformer

Total internal reflection
Thin film
Type-I superconductor
Type-II superconductor
Transverse wave motion
Twin boundaries
Toughness
Thermoplastic
Translatory motion
Tensor analysis
Translational motion
Thermal Radiation (Thermodynamics)


U         


Universal gravitational constant
Ultra thin films
Unit cell






V



Vacuum
VVER
Vapour degreasing
Vacuum pressure
Vitrification
Vapor

Vector
Volume strain
Viscosity
Vacuum pressure
Vibrational-rotational spectrum
Visible spectrum


W


Work
Work-energy theorem
Weidmann-Franz law
Welding

Wien’s Displacement law
Wave
Wave length


X

X-Ray

Y

Yielding
Yield Point

Z

Zone plate
Zeroeth Law of Thermodynamics