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aneroid barometer

a device for measuring atmospheric pressure, often specially calibrated for use as an altimeter, consisting of a box or chamber partially exhausted of air, having an elastic top and a pointer to indicate the degree of compression of the top caused by the external air.
Origin of aneroid barometer
First recorded in 1840-50 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for aneroid barometer
Historical Examples
  • Pity that I had no aneroid barometer for ascertaining the elevation of that site.

  • The principle is employed in another form for the aneroid barometer (p. 329).

    How it Works Archibald Williams
  • The atmospheric pressure by the aneroid barometer was at 29.83.

    My Attainment of the Pole Frederick A. Cook
  • Potain modified the apparatus by using air in the bulb with an aneroid barometer for recording the pressure.

    Arteriosclerosis and Hypertension: Louis Marshall Warfield
  • It was three miles to the bottom of the gully, and the aneroid barometer registered one thousand one hundred and ninety feet.

    The Home of the Blizzard Douglas Mawson
  • The altimeter, which is an aneroid barometer, outlines with fair accuracy the height above the ground at which a plane is flying.

    Aviation Engines

    Victor Wilfred Pag
  • Got a little doodad out of his pocket; aneroid barometer, or something, he said it was.

    The Brain Alexander Blade
  • The aneroid barometer does not use a column of air in the same way as the old instrument.

  • The pressure at the surface of Mars will therefore be 2·1 lb.; and the aneroid barometer would read 4·3 inches.

    Are the Planets Inhabited? E. Walter Maunder
  • Hipp, who was perhaps the latest of this group, first applied the aneroid barometer (fig. 8) to self-registration.

British Dictionary definitions for aneroid barometer

aneroid barometer

a device for measuring atmospheric pressure without the use of fluids. It consists of a partially evacuated metal chamber, the thin corrugated lid of which is displaced by variations in the external air pressure. This displacement is magnified by levers and made to operate a pointer
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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aneroid barometer in Science
aneroid barometer

A barometer consisting of a thin elastic disk covering a chamber that contains a partial vacuum. High atmospheric pressure pushes against the disk and causes it to bulge inward, while low pressure does not push as hard, allowing the disk to bulge outward. An aneroid barometer is smaller and more portable than a mercury barometer and, when used with a barograph, can record up to a week's worth of data. Aneroid barometers are used extensively in aviation as part of altimeters.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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