Attohertz

{
  "id": "MLC-T-IND-000314",
  "term": "Attohertz",
  "field": "Industrial and trades",
  "definition": "A unit of frequency equal to one quintillionth (10^-18) of a hertz. This extremely low frequency is rarely encountered in practical engineering applications but can be conceptualized in theoretical physics or cosmology when discussing phenomena over vast timescales. One attohertz corresponds to a period of approximately 31.7 billion years.",
  "synonyms": [
    "aHz"
  ],
  "subject": "Metrology and inspection",
  "references": [
    "NIST Guide to the SI: SI units and prefixes (National Institute of Standards and Technology)"
  ],
  "translations": {
    "de": "Attohertz",
    "es": "attohertz",
    "fr": "attohertz"
  },
  "url": "https://mlchart.com/terminology/industrial/attohertz/"
}