Nanometer

{
  "id": "MLC-T-ENV-018095",
  "term": "Nanometer",
  "field": "Environment",
  "definition": "1. A length equal to one billionth of a meter. The nanometer, or nm, is a metric unit of length commonly used to describe wavelengths of light or other electromagnetic radiation such as UV. For example, green light has wavelengths of about 500-550 nm, while violet light has wavelengths of about 400-450 nm. One billionth is a tiny number. One foot is about one billionth the distance of 48 round-trips between Los Angeles and Washington, DC.\n\n2. One billionth of a meter (1 x 10⁻⁹ m). A common unit used to describe wavelengths of light or other electromagnetic radiation such as ultraviolet (UV).\n\n3. A distance of one billionth of a meter. The nanometer (nm) is a common unit used to describe wavelengths of light or other electromagnetic radiation such as ultraviolet radiation. For example, green light has wavelengths of about 500-550 nm, while violet light has wavelengths of about 400-450 nm.",
  "abbreviation": "nm",
  "subject": "Health and safety",
  "references": [
    "SunWise Program Glossary",
    "Glossary for UV Database",
    "Ozone Layer Protection Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/nanometer/"
}