Barometer

{
  "id": "MLC-T-MET-000282",
  "term": "Barometer",
  "field": "Meteorology and atmospheric science",
  "definitions": [
    "An instrument used to measure atmospheric pressure. Common types include mercury barometers, which measure the height of a mercury column supported by atmospheric pressure, and aneroid barometers, which use a sealed metal capsule that expands and contracts with pressure changes. Barometers are fundamental tools for weather forecasting and altitude determination.",
    "An instrument that measures atmospheric pressure."
  ],
  "see_also": [
    "barograph"
  ],
  "references": [
    "NWS Glossary"
  ],
  "url": "https://mlchart.com/terminology/meteorology/barometer/"
}