Propagation

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The word propagation can mean:

General

Multiplication or increase, as by natural reproduction. In artificial reproduction see propagation of schema.

Sciences and engineering

in physics and electronics, radio transmission by electrical conduction through a transmission medium for wave propagation via the motion of waves.
in digital circuits, propagation delay is the time between input and output of logic gates.
in chemistry, a description of the catalytically-driven process of polymer elongation.
in genetics, propagation is another term for the elongation part of transcription.

Information technology

in the DNS, the automatic retrieval of DNS zone files from a domain's nameservers.
Copying and distributing free software in a manner explicitly permitted under the applicable license

Other

in agriculture and horticulture, propagation is the production of increased numbers of plants, by seeds, cuttings, grafting or other methods.
in religion, a term often used for winning new converts to the particular religion.
in Psychological Operations, some degree of success in the spread of propaganda.

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