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