front

{
  "id": "MLC-T-MET-001088",
  "term": "front",
  "field": "Meteorology and atmospheric science",
  "definition": "A boundary or transition zone between two air masses of different density, and thus (usually) of different temperature. A moving front is named according to the advancing air mass, e.g., cold front if colder air is advancing.",
  "see_also": [
    "anafront",
    "katafront",
    "intertropical front",
    "secondary front",
    "upper front"
  ],
  "references": [
    "NWS Glossary"
  ],
  "url": "https://mlchart.com/terminology/meteorology/front/"
}