Meaning of ATTENUATION in English


 ̷ ̷ˌ ̷ ̷ ̷ ̷ˈwāshən noun

( -s )

Etymology: Latin attenuation-, attenuatio, from attenuatus + -ion-, -io -ion

1. : the act or process of attenuating

the treble can stand a little attenuation — P.H.Lang

: the state of being attenuated

the city of Duluth shows an … attenuation between Lake Superior and the uplands — C.L.White & G.T.Renner


a. : diminution of thickness : thinning , emaciation

the patient shows the attenuation characteristic of that disease

b. : diminution of density

attenuation of a country's population

c. : diminution of force or intensity : weakening

attenuation of the volume of sound

2. : a decrease in the pathogenicity or vitality of a microorganism or in the severity of a disease

3. : the diminution of density of wort resulting from its fermentation

4. : the decrease in amplitude of a wave or current with increasing distance from the source of transmission

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.