| 单词 | propagation |
| 释义 | propagation (once / 2364 pages) 1n 2n 3n If your dog is about to have puppies, then she's is engaged in the propagation of dogs, the creation of new life to further the species. Propagation has two main uses, both having to do with multiplying something. If it's used in relation to creatures, that means that the creatures are multiplying — having kids. A synonym for this is procreation. We also propagate ideas. Use propagation for anything that multiplies and spreads through larger and larger numbers or spaces — from the propagation of weeds in your garden to the propagation of belief in the divinity of snowmen. In physics, propagation is wave movement. WORD FAMILYpropagation: propagations+/propagate: propagated, propagates, propagating, propagation, propagative, propagator/propagator: propagators USAGE EXAMPLESThe propagation of “fake news” for political purposes, one is reminded again reading Mr. Smith’s book, did not begin with the reign of Vladimir Putin. New York Times(Dec 29, 2016) The propagation of such information through social networks bears many similarities to the evolution and transmission of infectious diseases. Nature(Dec 20, 2016) Like many trees, for oaks propagation is a numbers game. Washington Times(Dec 11, 2016) 1 n the act of producing offspring or multiplying by such production 2Syn|Hypo|Hyper generation, multiplication biogenesis, biogeny the production of living organisms from other living organisms breeding, facts of life, procreation, reproduction the sexual activity of conceiving and bearing offspring n the spreading of something (a belief or practice) into new regions 3Syn|Hyper extension airing, dissemination, public exposure, spreading the opening of a subject to widespread discussion and debate n the movement of a wave through a medium Hypo|Hyper 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 frontall the points just reached by a wave as it propagates physical phenomenon a natural phenomenon involving the physical properties of matter and energy |
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