(physics) A wave that changes the medium through which it travels to change its shape but not its volume or density.

A short period of very cold weather. / A permanent wave in the hair set by special solutions without the aid of any heating machine.

(physics) A fluctuation in spacetime caused by accelerating mass, which propagates as a wave at the speed of light. / (dated, proscribed) A gravity wave.

(physics, mathematics) The mathematical basis for quantum mechanics in which light and subatomic particles have the characteristics of both waves and particles.

Any of several forms of vibrational waves that travel through the Earth as the result of an earthquake or underground explosion.

(physics) Any wave that is propagated by the compression of a fluid; examples include sound

(physics) a wave that is not bounded by a given space, but can propagate freely / (physics) a wave in which the vibration is in the direction of propagation; a longitudinal wave

(physics) a collection of waves, travelling together / (physics) a probability wave

A type of electrical activity in the brain; a brain wave with a frequency of 4-8 hertz.

(physics) The longitudinal wave of pressure that is transmitted through any plastic material; audible sound.