altimeter

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al·tim·e·ter

 (ăl-tĭm′ĭ-tər)
n.
An instrument for determining elevation, especially an aneroid barometer used in aircraft that senses pressure changes accompanying changes in altitude.

[Latin altus, high; see al- in Indo-European roots + -meter.]

al′ti·met′ric (ăl′tə-mĕt′rĭk) adj.
al·tim′e·try n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

altimeter

(ælˈtɪmɪtə; ˈæltɪˌmiːtə)
n
(Aeronautics) an instrument that indicates height above sea level, esp one based on an aneroid barometer and fitted to an aircraft
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

al•tim•e•ter

(ælˈtɪm ɪ tər, ˈæl təˌmi tər)

n.
an aneroid or radio barometer used chiefly in aircraft to ascertain flight altitude.
[1820–30]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

al·tim·e·ter

(ăl-tĭm′ĭ-tər)
An instrument that measures and indicates the height above sea level at which an object, such as an airplane, is located.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

altimeter

An instrument which measures vertical distance with respect to a reference level.
Dictionary of Military and Associated Terms. US Department of Defense 2005.

altimeter

an instrument for determining altitude above a fixed level by comparison of air pressure readings.
See also: Instruments
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.altimeter - an instrument that measures the height above groundaltimeter - an instrument that measures the height above ground; used in navigation
aneroid, aneroid barometer - a barometer that measures pressure without using fluids
hypsometer - an altimeter that uses the boiling point of water to determine land elevation
measuring device, measuring instrument, measuring system - instrument that shows the extent or amount or quantity or degree of something
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
AltimeterHöhenmesser
altimetarvisinomjer

altimeter

[ˈæltɪmiːtəʳ] Naltímetro m
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

altimeter

[ælˈtɪmɪtər] n [plane] → altimètre m
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

altimeter

nHöhenmesser m
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

altimeter

[ˈæltɪmiːtəʳ] naltimetro
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
References in classic literature ?
Here it was still cold, but without the dampness of the clouds, and in the eye of the brilliant sun her spirits rose with the mounting needle of her altimeter. Gazing at the clouds, now far beneath, the girl experienced the sensation of hanging stationary in mid-heaven; but the whirring of her propellor, the wind beating upon her, the high figures that rose and fell beneath the glass of her speedometer, these told her that her speed was terrific.
In some cases the instrument may simply be too old to do anything with, and this includes vintage attitude instruments and altimeters. This means you'll probably have to buy an outright factory new replacement, with no core credit offered.
I enjoyed your December article, "Altimeters on Approach." But in the article, you left out one other possibility in an emergency.
The LEO layer satellites with optical cameras and altimeters onboard are designed for Earth observation, and the MEO layer is designed in combination with the LEO layer to be a communication constellation.
We also know that altimeters, being mechanical instruments, are prone to certain errors, often in much the same way as the airspeed indicator.
The new sensor's altitude resolution of up to 20 cm makes it ideal for use in altimeters and variometers.
Along with the modern parachute systems, the NSG is also procuring altimeters for use during the free fall.
The new product is priced at USD2,995, or USD2,525 when purchased with FreeFlight Systems' TSO certified RA-4000 or RA-4500 Radar Altimeters.
It was suggested to Flight Sergeant James Doig, who trains parachutists, that additional safety measures were needed, in particular two-way radios for trainees and beeping altimeters to warn whether to deploy reserve chutes.
Satellites use altimeters and other tools to calculate wave height from above.
In late 1996, radar altimeters on a European Space Agency satellite began to measure a drop in elevation across a 60O-square-kilometer area of eastern Antarctica.