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[prop-uh-gey-shuh n] /ˌprɒp əˈgeɪ ʃən/
the act of propagating.
the fact of being propagated.
multiplication by natural reproduction.
transmission or dissemination.
Origin of propagation
late Middle English
1400-50; late Middle English propagacyon < Latin propāgātiōn- (stem of propāgātiō). See propagate, -ion
Related forms
propagational, adjective
nonpropagation, noun
self-propagation, noun
4. spreading, dispersion, diffusion. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for propagation
  • What brings on this sudden propagation of algae is not completely known, although water temperatures play a role in many cases.
  • For its part, there isn't much in gene propagation to make the heart sing.
  • Combustion and propagation processes are then simulated in order to predict the spread of the fire.
  • Malicious software comes in several flavors, distinguished primarily by their method of propagation.
  • Their number has steadily increased through propagation and spur-of-the-moment purchases at florists and local nurseries.
  • Often they will encrypt and decrypt themselves and mutate during propagation.
  • Produces numerous offsets, which may be detached for use in propagation.
  • The recommended repair for many non-threatening cracks is to drill a hole at the propagation site.
  • Superluminal propagation is seen, effectively, in photon tunneling.
  • propagation is the subject that won him two big book awards so this evening should be inspirational.
Word Origin and History for propagation

mid-15c., from Old French propagacion "offshoot, offspring" (13c.) and directly from Latin propagationem (nominative propagatio) "a propagation, extension, enlargement," noun of action from past participle stem of propagare "set forward, extend, spread, increase; multiply plants by layers, breed," from propago (genitive propaginis) "that which propagates, offspring," from pro- "forth" (see pro-) + *pag-, root of pangere "to fasten" (see pact).

Online Etymology Dictionary, © 2010 Douglas Harper
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propagation in Medicine

propagation prop·a·ga·tion (prŏp'ə-gā'shən)

  1. Multiplication or increase, as by natural reproduction.

  2. The act or process of propagating, especially the process by which an impulse is transmitted along a nerve fiber.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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