pH

{
  "id": "MLC-T-MET-007884",
  "term": "pH",
  "field": "Meteorology and atmospheric science",
  "definition": "A measure of the acidity or alkalinity of a solution, defined as the negative base-10 logarithm of the hydrogen ion activity. A pH value of 7 indicates neutrality, while values below 7 are acidic and values above 7 are alkaline. The pH of natural rainwater is typically slightly acidic, around 5.6, due to dissolved carbon dioxide.",
  "url": "https://mlchart.com/terminology/meteorology/ph/"
}