barometric pressure

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barometric pressure

A barometer on the wall shows a change in barometric pressure.

Definition
  1. Noun:
    • Atmospheric pressure as indicated by a barometer: The force exerted by the weight of the atmosphere, measured using an instrument called a barometer. It is a key parameter in meteorology for weather forecasting.
Usage
  • Barometric pressure is typically measured in units such as inches of mercury (inHg), millibars (mb), or hectopascals (hPa).
  • It is used to describe the current state of atmospheric pressure, often in weather reports and scientific observations.
  • High barometric pressure is generally associated with calm, clear weather, while low barometric pressure often indicates stormy or unsettled conditions.
Examples
Advanced Usage
  • Mean sea-level pressure (MSLP): A standardized measure of barometric pressure adjusted to sea level, allowing for comparison between locations at different altitudes.
    • Weather maps show isobars connecting points of equal mean sea-level pressure.
  • Barometric tendency (pressure tendency): The change in barometric pressure over a specific period, a critical factor in short-term weather prediction.
    • A falling barometric tendency over three hours often precedes precipitation.
Variants and Related Words
  • Barometer (n): The instrument used to measure barometric pressure.
    • An aneroid barometer uses a small, flexible metal box to detect pressure changes.
  • Barometric (adj): Relating to the measurement of atmospheric pressure.
    • The barometric reading was 1013 hPa.
Synonyms
  • Atmospheric pressure: The general term for the pressure caused by the weight of air.
  • Air pressure: A common synonym used in everyday and scientific contexts.
Related Phrases
  • High-pressure system: An area where the barometric pressure is higher than the surrounding areas, associated with stable weather.
    • A high-pressure system is bringing sunny skies to the region.
  • Low-pressure system: An area where the barometric pressure is lower than the surrounding areas, associated with clouds and precipitation.
    • The low-pressure system moving in from the coast will bring rain tomorrow.
barometric pressure

A barometer on the wall shows a change in barometric pressure.

Noun
  1. atmospheric pressure as indicated by a barometer