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.

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barograph British  

/ ˈbærəˌɡrɑːf, -ˌɡræf /

noun

1. meteorol a self-recording aneroid barometer

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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.

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Other Word Forms

• barographic
  adjective

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Etymology

Origin of barograph

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

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Example Sentences

See Examples For:

barograph

The needle of the glider's sealed barograph reached its limit at 27,000 ft.

From Time Magazine Archive

A representative of the National Aeronautic Association shipped their sealed, clock-controlled barograph to Washington.

From Time Magazine Archive

Then it was discovered that someone had neglected to install in his plane a barograph, necessary for official recognition of his flight.

From Time Magazine Archive

He will have to send the record from his sealed barograph home to Switzerland for any official recognition.

From Time Magazine Archive

The altitude flight is won by Number Four," announced the officials after they had examined the barograph; "with a height of 6,000 feet.

From The Girl Aviators' Motor Butterfly by Margaret Burnham

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