attenuation
C1CEFR level
75/100Rarity: rare
TechnicalRegister
Medicine noun
The reduction in intensity of a beam as it passes through and is absorbed by tissue.
Dense bone causes greater attenuation of the X-ray beam than soft tissue does.
Business noun
The weakening of a measured relationship, often caused by noise or measurement error.
Measurement error caused attenuation, so the true effect of training on productivity was larger than the data suggested.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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