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radio-controlled
radio frequency
radio galaxy
radio interferometer
radio jet
radio source
radio spectrum
radio star
radio telescope
radio wave
radioactive
radioactive dating
radioactive decay
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radio telescope

ra·di·o tel·e·scope (plural ra·di·o tel·e·scopes)


noun 
Definition:
 
instrument for studying radio wave sources: an astronomical instrument used to detect and analyze radio waves from astronomical objects. It consists of an antenna, often in the form of a large dish, a detector, and an amplifier.

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