The wavelength of a microwave signal is the length of its electromagnetic wave. This wavelength is inversely proportional to the signal's frequency.

The distance between successive peaks or troughs.

The distance between the top of one wave and the top of the next wave. The argon fluoride excimer wavelength is 193 nm. This wavelength is in the far ultraviolet end of the electromagnetic spectrum.

The wave length is the distance (in metres) between one zero up-crossing of the average water level line and the next. Wave length is related to wave period and water depth, such that for a given depth of water waves with a longer wave period have a longer wave length. Or for a given wave period, waves in deeper water have a longer wave length.

The distance measured in the direction of a propagation, of a repetitive electrical pulse or waveform between two successive points that are characterized by the same phase of vibration.

The distance, measured in the direction of propagation, of a repetitive electrical pulse or wave form between two successive points the, are characterized by the same phase of vibration.

The distance between any two adjacent corresponding locations on the wave train, usually measured in one of three ways: crest to next crest, trough to next trough, or from the start of a wave cycle to the next starting point.

The distance between peaks of successive sound waves.

In simple terms, the horizontal distance between successive wave crests measured perpendicular to the crests. However, in a random sea, a variety of interpretations of this are possible. A commonly used definition is the so-called zero-upcrossing length, which is the horizontal distance between two successive upcrossings of the mean water level. See wave frequency, wave height, wave period.

The least distance between particles moving in the same phase of oscillation of a wave. In oceanography, it is the horizontal distance between the highest parts of two successive wave crests above the still water level, separated by a trough that is below the still water level, and it is measured in meters.