Air discharge

{
  "id": "MLC-T-MET-003376",
  "term": "Air discharge",
  "field": "Meteorology and atmospheric science",
  "definition": "An electrical discharge that occurs through the air, which normally acts as an insulator. This phenomenon happens when the electric field strength across a volume of air exceeds its dielectric strength, causing the air to ionize and become electrically conductive. Lightning is the most powerful and well-known form of natural air discharge, but it also includes smaller-scale events like corona discharge from pointed objects.",
  "url": "https://mlchart.com/terminology/meteorology/air-discharge/"
}