Source : Webster's Revised Unabridged Dictionary (1913)

Transmission \Trans*mis"sion\, n. [L. transmissio; cf. F.
   transmission. See {Transmit}.]
   1. 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.

   2. (Law) The right possessed by an heir or legatee of
      transmitting to his successor or successors any
      inheritance, legacy, right, or privilege, to which he is
      entitled, even if he should die without enjoying or
      exercising it.

Source : WordNet®

transmission
     n 1: the act of sending a message; causing a message to be
          transmitted [syn: {transmittal}, {transmitting}]
     2: communication by means of transmitted signals
     3: the fraction of radiant energy that passes through a
        substance [syn: {transmittance}]
     4: an incident in which an infectious disease is transmitted
        [syn: {infection}, {contagion}]
     5: the gears that transmit power from an automobile engine via
        the driveshaft to the live axle [syn: {transmission system}]