[trans.mis.sion] n [L transmission-, transmissio, fr. transmittere to transmit] (1611) 1: an act, process, or instance of transmitting "~ of a nerve impulse across a synapse"
2: the passage of radio waves in the space between transmitting and receiving stations; also: the act or process of transmitting by radio or television
3: an assembly of parts including the speed-changing gears and the propeller shaft by which the power is transmitted from an automobile engine to a live axle; also: the speed-changing gears in such an assembly
4: something that is transmitted: message -- trans.mis.sive adj -- trans.mis.siv.i.ty n