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

Derived Forms

• barographic
  adjective

Etymology

Origin of barograph

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

Example Sentences

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

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

From Time Magazine Archive

A logbook and barograph, still intact, showed that the balloon had climbed to 72,178 ft.�

From Time Magazine Archive

Later, properly equipped with a barograph, Barstow took off again.

From Time Magazine Archive

Tom, noting the barograph, and seeing that they were twenty-two hundred feet high, decided to keep at about that distance from the earth.

From Tom Swift and His Sky Racer, or, the Quickest Flight on Record by Appleton, Victor [pseud.]