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Definition of "attenuation" in English

noun

  1. A gradual diminishing of strength.

  2. (physics) A reduction in the level of some property with distance, especially the amplitude of a wave or the strength of a signal.

  3. (biology) A weakening in the virulence of a pathogen or other microorganism.

  4. (botany) The tapering of a leaf etc to a fine point.

  5. (engineering) A fabrication process in which a material is stretched out into a thin shape.

  6. (homeopathy) The reduction of the active principles of medicines to minute doses.

  7. (brewing) The proportion of sugar that is converted to ethanol by a yeast.