Definition of wireless telephone in US English:

wireless telephone

noun

Telecommunications
  • A telephone used for radio-telephony; a telephone for communicating using radio waves rather than wires; = "radio-telephone"; (in later use) = "mobile phone".

Origin

Late 19th century; earliest use found in The Westminster Gazette. From wireless + telephone.

Pronunciation

wireless telephone

/ˌwʌɪələs ˈtɛlɪfəʊn/