Dewpoint depression

{
  "id": "MLC-T-MET-004966",
  "term": "Dewpoint depression",
  "field": "Meteorology and atmospheric science",
  "definition": "The difference between the air temperature and the dewpoint temperature. This value indicates how far the air is from saturation; a larger depression means the air is drier and further from saturation. A dewpoint depression of zero signifies that the air is saturated, and condensation is occurring or imminent.",
  "synonyms": [
    "spread",
    "dewpoint spread",
    "dewpoint deficit"
  ],
  "url": "https://mlchart.com/terminology/meteorology/dewpoint-depression/"
}