'radio' definitions:

Definition of 'radio'

From: WordNet
adjective
Indicating radiation or radioactivity; "radiochemistry"
noun
Medium for communication [syn: radio, radiocommunication, wireless]
noun
An electronic receiver that detects and demodulates and amplifies transmitted signals [syn: radio receiver, receiving set, radio set, radio, tuner, wireless]
noun
A communication system based on broadcasting electromagnetic waves [syn: radio, wireless]
verb
Transmit messages via radio waves; "he radioed for help"

Definition of 'radio'

From: GCIDE
  • electronic device \electronic device\ n. a device depending on the principles of electronics and using the manipulation of electron flow for its operation. [PJC]
  • Note: Numerous electronic devices are in daily use, among them the television, radio, computer, robot, transmitter, receiver, VCR, CD player, etc. [PJC]

Synonyms of 'radio'

From: Moby Thesaurus