barograph

[ bar-uh-graf, -grahf ]

noun

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

barograph

/ ˌbærəˈɡræfɪk; ˈbærəˌɡrɑːf; -ˌɡræf /

noun

1. meteorol a self-recording aneroid barometer

barograph

/ băr′ə-grăf′ /

1. 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.

Derived Forms

• barographic, adjective

Other Words From

• bar·o·graph·ic [bar-, uh, -, graf, -ik], adjective

Word History and Origins

Origin of barograph¹

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

Example Sentences

The general care of the barograph is the same as that of the thermograph.

From Project Gutenberg

The wind had moderated a little, but the barograph-needle was still almost off the paper it had gone so low.

From Project Gutenberg

Figure 48 shows a barograph or self-registering barometer which automatically registers air pressure.

From Project Gutenberg

Barograph—A recording barometer, the charts of which can be calibrated for showing air density or height.

From Project Gutenberg

You can see the curve yourself if you ask Fraser to show you the self-registering barograph.

From Project Gutenberg