A purposefully designed timing of a series of traffic lights to produce a green light for cars travelling at the correct speed as they arrive at the lights.

Alternative form of S-wave

plural of electromagnetic wave

plural of radio wave

(idiomatic) To take advantage of a profitable period.

plural of cold wave

(mathematics, engineering, signal processing) A function or waveform that alternates regularly and instantaneously between two levels.

The effect on a wave, in a body of water, of increasing wave height with decreasing water depth. Particularly noticeable at the sea shore.

plural of hot wave

plural of Mexican wave