noun (n)

• the act of sending a message; causing a message to be transmitted(noun.act)

  Synonym:
  transmittal, transmitting
  

  source: wordnet30
• communication by means of transmitted signals(noun.communication)

  source: wordnet30
• the fraction of radiant energy that passes through a substance(noun.quantity)

  Synonym:
  transmittance
  

  source: wordnet30
• an incident in which an infectious disease is transmitted(noun.event)

  Synonym:
  contagion, infection
  

  source: wordnet30
• the gears that transmit power from an automobile engine via the driveshaft to the live axle(noun.artifact)

  Synonym:
  transmission system
  

  source: wordnet30
• The act of transmitting, or the state of being transmitted; as, the transmission of letters, writings, papers, news, and the like, from one country to another; the transmission of rights, titles, or privileges, from father to son, or from one generation to another.(noun)

  source: webster1913