Mercury thermometer

{
  "id": "MLC-T-MET-007204",
  "term": "Mercury thermometer",
  "field": "Meteorology and atmospheric science",
  "definition": "A temperature-measuring device consisting of a glass tube with a bulb containing mercury, which expands and contracts with temperature changes. The expansion or contraction of the mercury column indicates the ambient temperature on a calibrated scale. These thermometers were once widely used for accurate atmospheric temperature measurements.",
  "url": "https://mlchart.com/terminology/meteorology/mercury-thermometer/"
}