hertzien angolul

Hertzian▼◼◼◼(of or pertaining to Heinrich Hertz or his work)
adjective
[UK: ˈhɜːt.sɪən] [US: ˈhɝːt.sɪən]

airwaves▼◼◼◼noun
[UK: ˈeə.weɪvz] [US: ˈeˌr.wevz]