short wave
nounUK /ˈʃɔːt weɪv/ · US /ˈʃoɹt ˌweɪv/
Etymology From short (adjective) + wave (noun).
1
A wave in a gas or liquid with a relatively short wavelength.
2
Broadcasting, Communications, Electrical engineering, Engineering, Media, Natural sciences, Physical sciences, Physics, Radio, Telecommunications Alternative Alternative form of shortwave.