attenuate
1. [ verb ] (chemistry) weaken the consistency of (a chemical substance)
Synonyms: rarefy
Related terms: weaken chemistry
2. [ adjective ] reduced in strength
Synonyms: faded weakened attenuated
Examples:

"the faded tones of an old recording"

Related terms: decreased
3. [ verb ] become weaker, in strength, value, or magnitude
Related terms: weaken refine attenuation
Similar spelling:   attenuated
  attenuator
  attenuation
  attentive
  attendant
  attentively
  attendance
  attender
  attendee
  attended
  attention
  attending
  attend_to
  attend
  attentional