English to English Dictionary

Radio Frequency

The oscillation rate of an alternating electric current or voltage or of a magnetic, electric, or electromagnetic field or mechanical system in the frequency range from roughly 20 kHz to 300 GHz.

Radio Spot

A short advertisement broadcast on radio.

Radio Telephone

A communication device that transmits and receives sound via radio waves.

Radio astronomy

The branch of astronomy that studies celestial bodies by means of the radio waves they emit.

Radio jockey

An announcer on a radio station who introduces and plays recorded music, reads advertisements, and talks to listeners.

Radio telescope

A directional antenna used in radio astronomy to gather radio frequency radiation from astronomical sources in the sky.

Radio-Phone

A device that transmits and receives sound via radio waves, allowing for wireless communication.

Radio-transmitter

A device that converts electrical energy into radio waves for transmission.

Radioastronomy

The branch of astronomy that studies celestial bodies and phenomena by measuring the radio waves they emit.

Radiography

The process of using X-rays to view the internal structure of an object, especially for medical diagnosis.

Radiosity

The total rate of radiation emitted from a surface per unit area in all directions.

Radiostronomy

The branch of astronomy that deals with the study of celestial objects through their radio emissions.