| Noun | 1. | broadcast medium - a medium that disseminates via telecommunicationsmass medium, medium - (usually plural) transmissions that are disseminated widely to the public broadcast, air, transmit, beam, send - broadcast over the airwaves, as in radio or television; "We cannot air this X-rated song" interrogate - transmit (a signal) for setting off an appropriate response, as in telecommunication air - be broadcast; "This show will air Saturdays at 2 P.M." rebroadcast, rerun - broadcast again, as of a film sign off - cease broadcasting; get off the air; as of radio stations |