0–9

• 21 cm line

A

• Abbe prism
• Absorption spectroscopy
• Absorption spectrum
• Absorption wavemeter
• Acoustic wave
• Acoustic wave equation
• Acoustics
• Acousto-optic effect
• Acousto-optic modulator
• Acousto-optics
• Airy disc
• Airy wave theory
• Alfvén wave
• Alpha waves
• Amphidromic point
• Amplitude
• Amplitude modulation
• Animal echolocation
• Antarctic Circumpolar Wave
• Antiphase
• Aquamarine Power
• Arrayed waveguide grating
• Artificial wave
• Atmospheric diffraction
• Atmospheric wave
• Atmospheric waveguide
• Atom laser
• Atomic clock
• Atomic mirror
• Audience wave
• Autowave
• Averaged Lagrangian

B

• Babinet's principle
• Backward wave oscillator
• Bandwidth-limited pulse
• beat
• Berry phase
• Bessel beam
• Beta wave
• Black hole
• Blazar
• Bloch's theorem
• Blueshift
• Boussinesq approximation (water waves)
• Bow wave
• Bragg diffraction
• Bragg's law
• Breaking wave
• Bremsstrahlung, Electromagnetic radiation
• Brillouin scattering
• Bullet bow shockwave
• Burgers' equation
• Business cycle

C

• Capillary wave
• Carrier wave
• Cherenkov radiation
• Chirp
• Ernst Chladni
• Circular polarization
• Clapotis
• Closed waveguide
• Cnoidal wave
• Coherence (physics)
• Coherence length
• Coherence time
• Cold wave
• Collimated light
• Collimator
• Compton effect
• Comparison of analog and digital recording
• Computation of radiowave attenuation in the atmosphere
• Continuous phase modulation
• Continuous wave
• Convective heat transfer
• Coriolis frequency
• Coronal mass ejection
• Cosmic microwave background radiation
• Coulomb wave function
• Cutoff frequency
• Cutoff wavelength
• Cymatics

D

• Damped wave
• Decollimation
• Delta wave
• Dielectric waveguide
• Diffraction
• Direction finding
• Dispersion (optics)
• Dispersion (water waves)
• Dispersion relation
• Dominant wavelength
• Doppler effect
• Doppler radar
• Douglas Sea Scale
• Draupner wave
• Droplet-shaped wave
• Duhamel's principle

E

• E-skip
• Earthquake
• Echo (phenomenon)
• Echo sounding
• Echolocation (animal)
• Echolocation (human)
• Eddy (fluid dynamics)
• Edge wave
• Eikonal equation
• Ekman layer
• Ekman spiral
• Ekman transport
• El Niño–Southern Oscillation
• Electroencephalography
• Electromagnetic electron wave
• Electromagnetic radiation
• Electromagnetic wave
• Electromagnetic wave cut-off
• Electron
• Elliott wave
• Elliptical polarization
• Emission spectrum
• Envelope (waves)
• Equatorial Rossby wave
• Equatorial waves
• Essential bandwidth
• Evanescent wave
• Extratropical cyclone
• Extremely low frequency

F

• F wave
• Fabry–Pérot interferometer
• Faraday wave
• Fetch (geography)
• Fourier series
• Fraunhofer diffraction
• Fraunhofer distance
• Freak wave
• Frequency
• Frequency modulation
• Fresnel diffraction
• Fresnel equations
• Fresnel integral
• Fresnel lens
• Fresnel number
• Fresnel rhomb
• Fresnel zone
• Fresnel–Arago laws
• Fundamental frequency

G

• Gamma ray
• Gamma ray burst
• Gamma wave
• Gaussian beam
• Geometric optics, Geometrical optics
• Geostrophic current
• Gravitational radiation
• Gravity wave
• Groundwave
• Group delay
• Group velocity

H

• Harmonic
• Heat wave
• Holography
• Human echolocation
• Hundred-year wave
• Hurricane
• Huygens' principle
• Hydraulic jump
• Hydrography
• Hydropower
• Hyperbolic partial differential equation

I

• In phase
• Inertial wave
• Infragravity wave
• Infrared gas analyzer
• Inhomogeneous electromagnetic wave equation
• Interference (wave propagation)
• Interferometry
• Internal wave
• Inverse scattering transform
• Ion acoustic wave
• Irradiance

K

• Kelvin wave
• Kinematic wave
• Knife-edge effect
• Kondratiev wave

L

• Lamb waves
• Landau damping
• Lee wave
• Linear elasticity
• Linear polarization
• List of waves named after people
• Long wavelength limit
• Longitudinal mode
• Longitudinal wave
• Longwave
• Love wave

M

• Mach wave
• Mach–Zehnder interferometer
• Maelstrom (disambiguation)
• Magnetometer
• Magnetosonic wave
• Matter wave
• Maxwell's equations
• Mayer waves
• Mechanical wave
• Medical ultrasonography
• Mediumwave
• Megatsunami
• Microbarom
• Microwave
• Microwave auditory effect
• Microwave oven
• Microwave plasma
• Microwaving
• Mie scattering
• Millimeter cloud radar
• Modulation
• Monochromatic electromagnetic plane wave
• Monochromator
• Moonlight
• Morning Glory cloud
• Mu wave
• Multipath propagation

N

• Neural oscillation
• Neutron
• Nondispersive infrared sensor
• Nonlinear Schrödinger equation
• Nonlinear wave
• Nonlinear X-wave
• Normal mode

O

• Ocean surface wave
• One-Way Wave Equation
• Optical fiber
• Optical waveguide
• Oscillon
• Out of phase
• Outgoing longwave radiation
• Overtone
• Oyster wave energy converter

P

• P-wave
• Parabolic reflector
• Periodic function
• Periodic travelling wave
• Phase (waves)
• Phase difference
• Phase modulation
• Phase velocity
• Phonon
• Photon
• Pitch shifter (audio processor)
• Planck constant
• Planck's law
• Plane wave
• Polarization (waves)
• Ponto-geniculo-occipital waves, PGO waves
• Power standing wave ratio
• pp-wave spacetime
• Pressure wave
• Prism
• Proton
• Pulsar
• Pulsar wind nebula
• Pulse wave velocity
• Pulse-density modulation

Q

• QT interval
• quadrature
• Quadrature amplitude modulation
• Quantum optics
• Quantum tunneling
• Quantum Zeno effect

R

• Radar
• Radar astronomy
• Radar cross section
• Radar gun
• Radio propagation
• Radio waves
• Radiosity (heat transfer)
• Rayleigh scattering
• Rayleigh wave
• Rayleigh–Jeans law
• Redshift
• Reflection coefficient
• Reflection seismology
• Refraction
• Relativistic Doppler effect
• Resonance
• Resonator
• Ring laser gyroscope
• Ring modulation
• Ring wave guide
• Rip current
• ripple
• Ripple tank
• Rogue wave (oceanography)
• Rossby wave
• Rossby-gravity waves
• Rydberg constant
• Rydberg formula

S

• S-wave
• Sampling (signal processing)
• Sawtooth wave
• Schrödinger equation
• Sea state
• Seiche
• Seismic wave
• Seismograph
• Seismology
• Sellmeier equation
• Shallow water equations
• Shive wave machine
• Shock wave
• Shortwave radio
• Signal velocity
• Significant wave height
• Sine wave
• Single-sideband modulation
• Sinusoidal plane-wave solutions of the electromagnetic wave equation
• Skywave
• Slow-wave potential
• Slow-wave sleep
• Sneaker wave
• Solitary wave
• Soliton
• Sonar
• Sonic anemometers
• Sound wave
• Spark-gap transmitter
• Spectroscopy
• Speed of gravity
• Speed of light
• Speed of sound
• Spike-and-wave
• Spin wave
• Square wave
• Standing wave
• Standing wave ratio
• Stefan–Boltzmann law
• Stokes drift
• Stokes wave
• Subharmonic
• Super low frequency
• Superharmonic
• Superposition principle
• Supersonic Wave Filter
• Surface acoustic wave
• Surface wave
• Surface wave inversion
• Surface-wave magnitude
• Surface-wave-sustained discharge
• Surfing
• Sverdrup wave
• Swell (ocean)
• Synthetic-aperture radar

T

• T wave
• Terrestrial gamma-ray flash
• Terrestrial stationary waves
• Theta wave
• Tidal bore
• Tidal power
• Tidal resonance
• Tide
• Tired light theory
• Transverse mode
• Transverse wave
• Traveling plane wave
• Traveling wave antenna
• Traveling wave reactor
• Traveling-wave tube
• Triangle wave
• Trigonometric function
• Trojan wave packet
• Tropical wave
• Tsunami
• Turbidity current

U

• Ultra low frequency
• Ultrasound
• Ultraviolet catastrophe
• Undertow (wave action)
• Underwater wave
• Undular bore

V

• Velocity factor
• Vestigial-sideband modulation
• Vibrating string
• Voltage standing wave ratio
• Vortex
• Vorticity

W

• Wake
• Wave (audience)
• Wave base
• Wave disk engine
• Wave drag
• Wave equation
• Wave farm
• Wave field synthesis
• Wave function
• Wave function collapse
• Wave height
• Wave impedance
• Wave loading
• Wave motor
• Wave packet
• Wave period
• Wave plate
• Wave pool
• Wave pounding
• Wave power
• Wave propagation
• Wave shoaling
• Wave surface
• Wave tank
• Wave turbulence
• Wave vector
• Wave velocity
• Wave–current interaction
• Wave-cut platform
• Wave-making resistance
• Waveform
• Waveform monitor
• Wave-formed ripple
• Wavefront
• Wavefunction
• Wavefunction collapse
• Waveguide
• Waveguide (acoustics)
• Waveguide (electromagnetism)
• Waveguide (optics)
• Waveguide flange
• Wavelength
• Wavelength selective switching
• Wavelength-division multiplexing
• Wavelet
• Wavelet transform
• Wavenumber
  • Zonal wavenumber
• Wavenumber-frequency diagram
• Wave–particle duality
• Waverider
• Waves and shallow water
• Waves in plasmas
• Whitham's method
• Wien approximation
• Wien's displacement law
• Wien's law
• Wind wave
• Windsurfing

X

• X-band radar
• X-ray
• X-wave

Z

• Zero-dispersion slope
• Zero-dispersion wavelength
• Zigzag
• Zodiacal light
• Zone plate