barograph

American  

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

noun

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

---

barograph British  

/ ˌbærəˈɡræfɪk, ˈbærəˌɡrɑːf, -ˌɡræf /

noun

1. meteorol a self-recording aneroid barometer

---

barograph Scientific  

/ 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.

---

Other Word Forms

• barographic adjective

Etymology

Origin of barograph

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

Example Sentences

It shows how stuff nobody cares about – escalator handrails, batteries, barographs, sombreros – is made.

From The Guardian

Cartesian graphs are almost always yielded by automatic recording instruments, such as the barograph, meteorograph, seismometer, &c.

From Project Gutenberg

Under Dr. Perkins’ skillful guidance the Sea Eagle climbed the aërial staircase till a height shown by the barograph to be almost 4,000 feet had been attained.

From Project Gutenberg

The pressure of the air is measured by the mercurial barometer, and registered continuously by the barograph; the temperature of the air is automatically recorded by the thermograph.

From Project Gutenberg

The times when the kite-meteorograph crossed the 700-metre level in ascending and descending were determined from its barograph trace, and the synchronous temperatures and humidities were read from the records of its thermograph and hygrograph.

From Project Gutenberg