barograph

[bar-uh-graf, -grahf]

noun

any of several automatic recording barometers, of which the most common is the aneroid barograph.

Origin of barograph

First recorded in 1860–65; baro- + -graph

Related formsbar·o·graph·ic

[bar-uh-graf-ik] /ˌbær əˈgræf ɪk/, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for barograph

Historical Examples of 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
Clarence Young
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
Victor Appleton

British Dictionary definitions for barograph

barograph

noun

meteorol a self-recording aneroid barometer

Derived Formsbarographic (ˌbærəˈɡræfɪk), adjective

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

barograph in Science

barograph

[băr′ə-grăf′]

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.