Superharmonic is a term that denotes the wavelength of a wave. It has various synonyms such as overtone, harmonic, and overtone frequency. Overtone refers to the frequency of a vibrating material that is a multiple of the fundamental frequency. Harmonic is another word that is used to describe the higher frequencies that are generated by a wave. It is also called partial or natural frequency. Overtone frequency is the same as the overtone and refers to the frequency that is a multiple of the fundamental frequency. Overall, synonyms for superharmonic are a useful tool to add variety to your writing and make your content more engaging and interesting to your readers.