1. The act of sending a message; causing a message to be transmitted
   "The transmission of classified information requires strict security protocols";
   - transmittal, transmitting
    
2. Communication by means of transmitted signals
   "The radio transmission was interrupted by static"
    
3. The spread of a disease from one person or organism to another, typically through direct or indirect contact
   "Researchers studied the transmission patterns of the new virus";
   - infection, contagion
    
4. The fraction of radiant energy that passes through a substance
   "The transmission of the tinted windows was measured to ensure compliance with regulations";
   - transmittance
    
5. The gears that transmit power from an automobile engine via the driveshaft to the live axle
   "The mechanic repaired the car's transmission system";
   - transmission system

Derived forms: transmissions

Type of: coefficient, communicating, communication, gear, gear mechanism, incident, sending

Part of: drive line, drive line system

Encyclopedia: Transmission