Definitions from Wiktionary (attenuation)

▸ noun:  A gradual diminishing of strength.
▸ noun:  (physics) A reduction in the level of some property with distance, especially the amplitude of a wave or the strength of a signal.
▸ noun:  (biology) A weakening in the virulence of a pathogen or other microorganism.
▸ noun:  (botany) The tapering of a leaf etc to a fine point.
▸ noun:  (engineering) A fabrication process in which a material is stretched out into a thin shape.
▸ noun:  (homeopathy) The reduction of the active principles of medicines to minute doses.
▸ noun:  (brewing) The proportion of sugar that is converted to ethanol by a yeast.
▸ Also see attenuation



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