[ bar-uh-graf, -grahf ]
/ ˈbær əˌgræf, -ˌgrɑf /


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 forms

bar·o·graph·ic [bar-uh-graf-ik] /ˌbær əˈgræf ɪk/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for barograph

British Dictionary definitions for barograph


/ (ˈbærəˌɡrɑːf, -ˌɡræf) /


meteorol a self-recording aneroid barometer

Derived Forms

barographic (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

Science definitions for barograph


[ bărə-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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.