Diffuser and Broadcasting

noun

• Baffle that distributes sound waves evenly.
  • synonyms: diffusor
• Optical device that distributes the light of a lamp evenly.
  • synonyms: diffusor

noun

• A medium that disseminates via telecommunications.
  • synonyms: broadcast medium
• Taking part in a radio or tv program.

verb

• Broadcast over the airwaves, as in radio or television.
  • usage: "We cannot air this X-rated song"
  • synonyms: air, send, broadcast, beam, transmit
• Sow over a wide area, especially by hand.
  • usage: "broadcast seeds"
  • synonyms: broadcast
• Cause to become widely known.
  • usage: "spread information"; "circulate a rumor"; "broadcast the news"
  • synonyms: circulate, circularize, circularise, distribute, disseminate, propagate, broadcast, spread, diffuse, disperse, pass around