attenuation
- n  weakening in force or intensity
                    
                        
                            
attenuation in the volume of the sound - n the property of something that has been weakened or reduced in thickness or density
 
- With his darkly handsome face and deep mellifluous voicea blend of West Side New York with Bill Buckley vowel attenuationdrama is his element.
 - Occasionally a novelist succeeds with such an attenuation of the obvious.
 - These slices are made possible by the CT's detectors, which gauge the attenuation of the X-ray beam as it passes through the body.