Meaning of altimeter

al•tim•e•ter

Pronunciation: (al-tim'i-tur, al'tu-mē"tur), [key]
— n.
  1. a sensitive aneroid barometer that is graduated and calibrated, used chiefly in aircraft for finding distance above sea level, terrain, or some other reference point by a comparison of air pressures.
  2. any device used for the same purpose that operates by some other means, as by radio waves.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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