Relative permittivity

{
  "id": "MLC-T-CHM-010154",
  "term": "Relative permittivity",
  "field": "Chemistry",
  "definition": "A dimensionless quantity that describes how an electric field affects and is affected by a dielectric medium, relative to a vacuum. It is the ratio of the permittivity of a material to the permittivity of free space. This value indicates the ability of a material to store electrical energy in an electric field, and it is also known as the dielectric constant.",
  "synonyms": [
    "dielectric constant"
  ],
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "electric field"
  ],
  "references": [
    "Green Book, 2nd ed., p. 14 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/relative-permittivity/"
}