Barograph meaning

bărə-grăf
A recording barometer.
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A barometer that records changes in atmospheric pressure on a revolving cylinder.
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A type of barometer that continuously records air pressure on a sheet or rotating drum.
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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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Origin of barograph

  • baro- +‎ -graph

    From Wiktionary