Definition of "transmission"

The act of transmitting, e.g. data or electric power.  examples

The fact of being transmitted.  examples

Something that is transmitted, such as a message, picture, or a disease; the sending of such a thing.  examples

(biology) The passage of a nerve impulse across synapses.

(automotive) An assembly of gears through which power is transmitted from the engine to the driveshaft in a motor car / automobile; a gearbox.  examples

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

(medicine, biology) The passing of a communicable disease from an infected host individual or group to a conspecific individual or group.