Radionuclide

{
  "id": "MLC-T-ONC-007194",
  "term": "Radionuclide",
  "field": "Oncology and biomedicine",
  "definition": "An unstable form of a chemical element that releases radiation as it breaks down and becomes more stable. Radionuclides may occur in nature or be made in a laboratory. In medicine, they are used in imaging tests and in treatment. Also called radioisotope.",
  "synonyms": [
    "radioisotope"
  ],
  "references": [
    "NCI Dictionary of Cancer Terms"
  ],
  "url": "https://mlchart.com/terminology/oncology/radionuclide/"
}