Freezing nucleus

{
  "id": "MLC-T-MET-005770",
  "term": "Freezing nucleus",
  "field": "Meteorology and atmospheric science",
  "definition": "A microscopic particle in the atmosphere that acts as a site for the formation of ice crystals from supercooled water droplets. These nuclei can be natural, such as dust or pollen, or artificial, like silver iodide used in cloud seeding. The presence and concentration of freezing nuclei influence the microphysics of cold clouds.",
  "url": "https://mlchart.com/terminology/meteorology/freezing-nucleus/"
}