The distance between corresponding points on a wave's cycle is called its wavelength.

Here's why:

* Wavelength is the physical distance between two identical points on consecutive waves.

* Cycle: A complete oscillation of a wave, from its starting point to its return to that point.

* Corresponding points: These could be the crests (highest points) or troughs (lowest points) of the wave, or any other point where the wave repeats itself.

Let me know if you have any more questions about waves!