# Dictionary

## wavelength

For simple wave where maxima and minima, wave crests and troughs follow each other with perfect regularity, one can define a characteristic wave-length: the never-changing distance between one wave-crest and the next.

For simple wave where maxima and minima, wave crests and troughs follow each other with perfect regularity, one can define a characteristic wave-length: the never-changing distance between one wave-crest and the next.