10 entries found for radio.
To select an entry, click on it.

radio[1,noun] radio[2,adjective] radio[3,verb] clock radio radio- radio astronomy radio frequency radio telescope radio wave transistor

Main Entry: ¹ra·dio
Pronunciation: rd--
Function: noun
Inflected Form(s): plural ra·di·os
Etymology: a shortened form of radiotelegraphy, literally, "telegraphy by rays"; radio- from French radio- "radial, radiating," from Latin radius "ray, beam, spoke" --related to RADIATE, RADIUS, ²RAY
1 : the sending or receiving of signals using electromagnetic waves without a connecting wire <radio includes television and radar>; especially : the use of these waves to carry sound that has been changed into electrical energy
2 : a radio receiving set <a transistor radio>
3 : the radio broadcasting industry

Pronunciation Symbols