Attenuation :: Attenuation (n.) The act or process of making slender, or the state of being slender; emaciation..
Attenuation :: Attenuation (n.) The act of attenuating; the act of making thin or less dense, or of rarefying, as fluids or gases..
Attenuation :: Attenuation (n.) The process of weakening in intensity; diminution of virulence; as, the attenuation of virus..