Radio - Definition
radio
adj 1: indicating radiation or radioactivity; "radiochemistry"
n 1: medium for communication [syn: radio,
radiocommunication, wireless]
2: an electronic receiver that detects and demodulates and
amplifies transmitted signals [syn: radio receiver,
receiving set, radio set, radio, tuner, wireless]
3: a communication system based on broadcasting electromagnetic
waves [syn: radio, wireless]
v 1: transmit messages via radio waves; "he radioed for help"