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spin wave
(physics) a wave, propagated through a crystal lattice as a result of changes in the spin angular momentum of electrons in the lattice
alpha wave
(neurology) An electrical signal produced by the brain while the subject is relaxed.
sound wave
(physics) The longitudinal wave of pressure that is transmitted through any plastic material; audible sound.
wave packet
(physics) a collection of waves, travelling together / (physics) a probability wave
space wave
(physics) The component of an electromagnetic wave (especially a radio wave) that travels directly from transmitter to receiver without being reflected
Kelvin wave
(oceanography, meteorology) A non-dispersive wave in the ocean or atmosphere that balances the Earth's Coriolis force against a topographic boundary such as a coastline, or a waveguide such as the equator.
wave of the hand
(idiomatic) A simple gesture, as used for command, dismissal, or summoning something as if by magic.
plane wave
(physics) A constant-frequency wave whose wavefronts are infinite parallel planes of constant peak-to-peak amplitude normal to the phase velocity vector.