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amplitude definition

am·pli·tude (-to̵̅o̅d′, -tyo̵̅o̅d′)

noun

  1. the quality of being ample or the amount or degree to which a thing extends
  2. an amount that is more than enough; abundance; fullness
  3. scope or breadth, as of mind
  4. the angular distance of a star from the true east or west point of the horizon, at the moment of its rising or setting
  5. the extreme range of a fluctuating quantity, as an alternating current or the swing of a pendulum, generally measured from the average or mean to the extreme

Etymology: L amplitudo < amplus: see ample

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