English to English Dictionary

Radiant-attenuation

The reduction in intensity or flux of radiant energy as it traverses a medium due to absorption, scattering, or geometric divergence.

Radical

Affecting the fundamental nature of something; far-reaching or thorough.

Radicalism

The beliefs or actions of people who advocate for thorough or complete political or social reform.

Radio

The transmission and reception of electromagnetic waves of radio frequency, especially those carrying sound messages.

Radio Astronomy

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

Radio Telephone

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

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.

Radiotelephone

A device that allows for wireless communication of voice over radio frequencies.

Radiotelephony

The technology and practice of using radio waves to transmit voice communications over distances.