- any of several automatic recording barometers, of which the most common is the aneroid barograph.
Origin of barograph
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for barograph
A self-recording barometer (usually an aneroid) is called a barograph.Meteorology
Charles Fitzhugh Talman
Were going down already, exclaimed Bob, looking at the barograph.The Motor Boys on the Wing
The general care of the barograph is the same as that of the thermograph.Practical Exercises in Elementary Meteorology
Robert DeCourcy Ward
The barograph showed them to be rising a hundred feet a minute.The Boy Scouts for Uncle Sam
John Henry Goldfrap
Tom was anxiously watching the barograph, to note their height.Tom Swift in the Caves of Ice
- meteorol a self-recording aneroid barometer
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
- An instrument that continuously records changes in atmospheric pressure. A barograph typically consists of an aneroid barometer connected to a pen; the pen is in contact with a piece of paper mounted on a cylinder that rotates once on a daily or weekly basis. As the atmospheric pressure changes, the pen is displaced in proportion to the change, thus a record of the pressure is traced onto the rotating sheet of paper.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.