propagation

Noun
  1. The spreading of something (a belief or practice) into new regions (synset 106263648)
    is a type of: airing, dissemination, public exposure, spreading - the opening of a subject to widespread discussion and debate
    same as: extension
  2. The act of producing offspring or multiplying by such production (synset 100851612)
    is a type of: breeding, facts of life, procreation, reproduction - the sexual activity of conceiving and bearing offspring
    subtypes: biogenesis, biogeny - the production of living organisms from other living organisms
    same as: generation, multiplication
  3. The movement of a wave through a medium (synset 111533425)
    is a type of: physical phenomenon - a natural phenomenon involving the physical properties of matter and energy
    subtypes:
    • doppler effect, doppler shift - change in the apparent frequency of a wave as observer and source move toward or away from each other
    • red shift, redshift - (astronomy) a shift in the spectra of very distant galaxies toward longer wavelengths (toward the red end of the spectrum); generally interpreted as evidence that the universe is expanding
    • wave front - all the points just reached by a wave as it propagates

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