What is another word for wave number?
Pronunciation: [wˈe͡ɪv nˈʌmbə] (IPA) 
When it comes to physics and electromagnetic radiation, the term "wave number" is commonly used to refer to the number of waves that pass through a given point in space per unit length. However, if you're looking for some alternative ways to describe this phenomenon, there are a few options at your disposal. One possible synonym is "spatial frequency," which refers to the number of occurrences of a repeating pattern per unit length in space. Another option is "wave vector," which describes the direction and magnitude of a wave's propagation through space. And finally, you could also use the term "wavelength inverse," which conveys the reciprocal relationship between wave number and wavelength.
