attenuation

noun
at·​ten·​u·​a·​tion | \ə-ˌten-yə-ˈwā-shən, -yü-ˈā-\
plural attenuations

Definition of attenuation 

: the act or process of attenuating something or the state of being attenuated: such as

a : a lessening in amount, force, magnitude, or value : weakening Sound can travel thousands of kilometers in this planar acoustic waveguide with little attenuation.— David Ritchie

b : a reduction of severity or virulence : a decrease in the pathogenicity of a microorganism or in the severity of a disease This virus grew well in tissue culture, with only limited temperature sensitivity as a marker of possible attenuation.— Peter F. Wright

c : diminution of thickness The detailing of the doorway, the narrowness and attenuation of the columns of the portico, and most especially the paneling and ornamentation in the interior … bespeak the neoclassical, somewhat similar to the plaster work found in Baltimore interiors.— Jessie Poesch

First Known Use of attenuation

1559, in the meaning defined above

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The first known use of attenuation was in 1559

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More Definitions for attenuation

attenuation

noun
at·​ten·​u·​a·​tion | \ə-ˌten-yə-ˈwā-shən \

Medical Definition of attenuation 

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

attenuation

noun
at·​ten·​u·​a·​tion | \ə-ˌten-yu̇-ˈwā-shən \

Legal Definition of attenuation 

: a lessening of the amount, force, or magnitude of something specifically : a weakening of the connection between an illegal police procedure and the evidence obtained by it such that the evidence is admissible at trial as an exception to the exclusionary rule

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