attenuation

• 名词，指某物的力量、强度、效果或密度的减弱或降低。

A noun referring to the reduction or weakening of force, intensity, effect, or density of something.

不可数

1. Weakening in force or intensityC1formal

   The process of reducing the strength, effect, or intensity of something.

   衰减

   • The attenuation of the signal made the radio broadcast difficult to hear.
   • Attenuation of the virus was achieved through a series of laboratory passages.
   • The drug caused an attenuation of the patient's pain over several hours.

   同义词abatementdampeningdeclinedecreasediminutionimpairmentlesseningmitigationreductionweakening

   反义词amplificationintensificationstrengthening

2. Reduction in thickness or densityC1formal

   The property of something that has been weakened or reduced in thickness or density.

   厚度或密度的减少

   • The attenuation of the metal wire made it more flexible but less durable.
   • Geologists studied the attenuation of the rock layer over millions of years.
   • The attenuation of the fabric's density allowed more light to pass through.

   同义词depletiondilutionrarefactionreductionthinningweakening

   反义词densificationstrengtheningthickening