attenuation
gradual loss of flux intensity through a medium
free-space path loss
path loss of radio transmitted through air or vacuum
acoustic attenuation
measure of the energy loss of sound propagation in media; phenomenon when hearing protectors help reduce acoustic flux from flowing into the ears, is measured in decibels (dBs)
path loss
signal attenuation in telecommunications due to distance traveled and obstructions in the path
inhibition
hindrance of neuron activation
rain fade
absorption of a radio frequency signal by atmospheric rain, snow, or ice
extinction
in astronomy, the absorption and scattering of electromagnetic radiation by dust and gas between an emitting astronomical object and the observer