The word '''propagation''' can mean:
*Multiplication or increase, as by natural Reproduction. In artificial reproduction see Propagation_of_schema.
*In Genetics, propagation is another term for the elongation part of transcription.
*In Agriculture and Horticulture, propagation is the production of increased numbers of Plants, by Seeds, Cuttings, Grafting or other methods.
*In Religion, '''propagation''' is a term often used for winning new converts to the particular religion.
*In Physics, '''propagation''' is the motion of Waves through or along a medium.
*In Chemistry, '''propagation''' describes the catalytically-driven process of Polymer elongation.
*In Psychological_Operations, '''propagation''' is some degree of success in the spread of Propaganda.
*In Digital_circuits, Propagation_delay is the time between input and output of Logic_gates.
Note: For Electromagnetic_waves, propagation may occur in a vacuum as well as in a material Transmission_medium.
See also: Photon, Waveguide, Polarization, Antenna_theory
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De:Ausbreitung
Fr:Propagation_des_ondes
Pl:Propagacja