Barometer - Wikipedia
An analog barometer A barometer is a scientific instrument that is used to measure air pressure. Pressure tendency, which is derived from barometric readings, can forecast short term changes in …
Barometer | Definition, Types, Units, & Facts | Britannica
Dec 15, 2025 · A barometer is a device used to measure atmospheric pressure. Because atmospheric pressure changes with distance above or below sea level, a barometer can also be used to measure …
How Barometers Measure Air Pressure - ThoughtCo
May 7, 2025 · A barometer is a widely used weather instrument that measures atmospheric pressure (also known as air pressure or barometric pressure) -- the weight of the air in the atmosphere. It is …
What Is A Barometer, How It Works, Where To Place It ...
Jun 27, 2025 · A barometer is defined as a meteorological instrument used to measure air pressure in the atmosphere. It forms a crucial part of any weather station and is primarily used with other …
BAROMETER Definition & Meaning - Merriam-Webster
The meaning of BAROMETER is an instrument for determining the pressure of the atmosphere and hence for assisting in forecasting weather and for determining altitude.
Barometer - National Geographic Society
Oct 24, 2023 · A barometer is a scientific instrument used to measure atmospheric pressure, also called barometric pressure. The atmosphere is the layers of air wrapped around Earth.
Barometer: What is it, what is it for, how it works and types
Mar 6, 2025 · A barometer is a instrument used to measure atmospheric pressure which is the weight that air exerts on the surface of the earth. This device is key in meteorology, since changes in …