Photodissociation

{
  "id": "MLC-T-MET-007908",
  "term": "Photodissociation",
  "field": "Meteorology and atmospheric science",
  "definition": "The process by which a molecule breaks apart into smaller fragments, atoms, or radicals due to the absorption of a photon. This is a primary mechanism for chemical reactions in the upper atmosphere, where high-energy ultraviolet radiation is abundant. An example is the photodissociation of oxygen molecules into oxygen atoms, which then form ozone.",
  "url": "https://mlchart.com/terminology/meteorology/photodissociation/"
}