I
In oceanography, a ridge or swell on the surface of a body of water, normally having a forward motion distinct from the motions of the particles that compose it.
Ocean waves are fairly regular, with an identifiable wavelength between adjacent crests and with a definite frequency of oscillation. Waves result when a generating force (usually the wind) displaces surface water and a restoring force returns it to its undisturbed position.
II
Propagation of disturbances from place to place in a regular and organized way.
Most familiar are surface waves that travel on water, but sound, light, and the motion of subatomic particles all exhibit wavelike properties. In the simplest waves, the disturbance oscillates periodically (see periodic motion ) with a fixed frequency and wavelength . Mechanical waves, such as sound, require a medium through which to travel, while electromagnetic waves (see electromagnetic radiation ) do not require a medium and can be propagated through a vacuum. Propagation of a wave through a medium depends on the medium's properties. See also seismic wave .
III
[c mediumvioletred] (as used in expressions)
tidal wave
seismic sea wave
New Wave
radio wave
seismic wave
wave front
wave function
{{link=wave cut platform">wave cut platform
wave particle duality