attenuation

nouns

weakening in force or intensity
"attenuation in the volume of the sound"
is derived from
the property of something that has been weakened or reduced in thickness or density
is derived from
is a type of (narrower)
the property of lacking physical or mental strength; liability to failure under pressure or stress or strain
"his weakness increased as he became older"; "the weakness of the span was overlooked until it collapsed"