Nucleation

{
  "id": "MLC-T-MET-007629",
  "term": "Nucleation",
  "field": "Meteorology and atmospheric science",
  "definition": "The initial process of forming a new thermodynamic phase, such as a liquid droplet from a vapor or an ice crystal from supercooled water, around a microscopic particle or impurity. In the atmosphere, this involves the formation of cloud droplets around condensation nuclei or ice crystals around ice nuclei. Nucleation is a fundamental step in cloud formation and precipitation processes.",
  "url": "https://mlchart.com/terminology/meteorology/nucleation/"
}