mercury barometer
Americannoun
Usage
What does mercury barometer mean? A mercury barometer is a barometer with a column of mercury whose height varies according to the atmospheric (barometric) pressure. A barometer is an instrument for measuring atmospheric pressure, which is used in forecasting the weather. Mercury barometers are no longer in wide use, having been replaced by other methods of measuring pressure, such as aneroid barometers, which use a small capsule with flexible walls that expand or contract in response to changes in atmospheric pressure.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Figure 11.21 A mercury barometer measures atmospheric pressure.
From Textbooks ● Aug. 12, 2015
A mercury barometer is a device that measures atmospheric pressure.
From Textbooks ● Aug. 12, 2015
A mercury barometer is shown in Figure 11.21.
From Textbooks ● Aug. 12, 2015
For this purpose, however, a barometer is used that is more easily carried than a mercury barometer.
From The Story of Great Inventions by Burns, Elmer Ellsworth
If we take a mercury barometer up a hill we will observe that the mercury falls.
From The Mastery of the Air by Claxton, William J.
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
