attenuate verb |əˈtenyoōˌāt| [ trans. ] (often be attenuated) reduce the force, effect, or value of : her intolerance was attenuated by a rather unexpected liberalism. I thought the example was quite funny
hehe...and here I was, thinking attenuate is the period of time between attending a school and graduating from it.
Radio waves are severely attenuated by concrete walls, which is why you get poor cell reception at the Mall.