from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Multiplication or increase, as by natural reproduction.
  • n. The process of spreading to a larger area or greater number; dissemination.
  • n. Physics The act or process of propagating, especially the process by which a disturbance, such as the motion of electromagnetic or sound waves, is transmitted through a medium such as air or water.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. the multiplication or natural increase in a population
  • n. the dissemination of something to a larger area or greater number
  • n. the act of propagating, especially the movement of a wave
  • n. the elongation part of transcription
  • n. winning new converts
  • n. some degree of success in the spread of propaganda

from the GNU version of the Collaborative International Dictionary of English

  • n. The act of propagating; continuance or multiplication of the kind by generation or successive production.
  • n. The spreading abroad, or extension, of anything; diffusion; dissemination

from The Century Dictionary and Cyclopedia

  • n. The act of propagating; the multiplication or continuance of the kind or species by natural generation or reproduction: as, the propagation of plants or animals.
  • n. The spreading or extension of anything; diffusion: as, the propagation of Christianity; the propagation of socialistic ideas.
  • n. Increase; augmentation; enlargement; aggrandizement.
  • n. Transmission from one point to another, as of sound by waves of condensation and rarefaction in the air, and of radiant heat and light by undulations in the ether. See sound, heat, light, and radiant energy (under energy).
  • n. Synonyms Increase, generation, procreation, breeding.
  • n. Dissemination.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the movement of a wave through a medium
  • n. the spreading of something (a belief or practice) into new regions
  • n. the act of producing offspring or multiplying by such production


Sorry, no etymologies found.


  • A theoretical picture of the behavior of such a light field on propagation is shown below:

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  • Therefore the manner of the said propagation is (as it were) by real Production or Creation; so that as

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  • "The next step is to make these cells suitable for long-term propagation, so they can be used in therapies."

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  • The mode of its propagation is explained by the remark of Procopius himself, that it always spread from the sea-coast to the inland country: the most sequestered islands and mountains were successively visited; the places which had escaped the fury of its first passage were alone exposed to the contagion of the ensuing year.

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  • Christianity throughout the whole course of its progress from the Redeemer's personal teaching to the present has been characterized by this method of propagation, that is, it has been spread abroad by preaching.

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  • They will reverently call their propagation and plagues "acts of God."

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  • It instantly struck me that this individual would be an excellent assistant in the work which had brought me to Seville, namely the propagation of the eternal Gospel; and accordingly after some more conversation, in which he exhibited considerable learning, I explained myself to him.

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  • This feature also allows the definition and propagation of higher-order laser modes.

  • They through Ishmael, the Jews through Isaac, and more immediately through Israel the son of Isaac, were two diverging branches of one original stem; and to both was pronounced a corresponding doom -- a sentence which argued in both a principle of duration and self-propagation, that is memorable in any race.

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  • The reason why such a sphere of the marriage of good and truth proceeds from the Lord, is, because it is also the sphere of propagation, that is, of prolification and fructification; and this sphere is the same with the divine providence relating to the preservation of the universe by successive generations.

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