Barometer - Wikipedia
Many measurements of air pressure are used within surface weather analysis to help find surface troughs, pressure systems and frontal boundaries. Barometers and pressure altimeters (the …
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 …
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 …
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 …
How Is Barometric Pressure Measured and Why? - HowStuffWorks
Feb 27, 2024 · What Is a Barometer? A barometer is a scientific instrument designed to measure barometric pressure. Barometers as we know them date back to 1643 when the Italian …
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.