fugitive definition: The definition of a fugitive is a person who is on the run or who has escaped from something such as the law or danger and is in hiding. (noun) An example of a fugitive is a fugitive from justice, who is hiding from arrest or persec...
In physics, the wavelength of a sinusoidal wave is the spatial period of the waveâthe distance over which the wave's shape repeats,[1] and thus the inverse of the spatial frequency.
Wavelength and frequency. Light is measured by its wavelength (in nanometers) or frequency (in Hertz). One wavelength equals the distance between two successive wave crests or troughs. Frequency (Hertz) equals the number of waves that passes a given point per second.