Manometer

{
  "id": "MLC-T-MET-007102",
  "term": "Manometer",
  "field": "Meteorology and atmospheric science",
  "definition": "An instrument used for measuring pressure, particularly small pressure differences, by balancing a column of fluid against the pressure to be measured. It consists of a U-shaped tube containing a liquid, such as mercury or water, with one end open to the atmosphere or a reference pressure and the other connected to the pressure source. The height difference between the liquid levels indicates the pressure.",
  "url": "https://mlchart.com/terminology/meteorology/manometer/"
}