(astronomy) That emits significant amounts of radio waves; radio-luminous

(astronomy) That emits significant amounts of radio waves; radio-bright.

A radio cassette player or radio cassette recorder

(astronomy) A brief emission of intense radio waves from a star etc.

A burglar alarm or fire alarm that transmits a warning radio signal when activated / A combination radio and alarm clock; a radio alarm clock

A clock that is synchronized to a remote time standard by means of radio signals

Alternative spelling of talk radio

A radio programme format with discussions about topical issues.

A disk jockey who hosts a radio talk show

(informal) A radio jockey