Seco-

{
  "id": "MLC-T-CHM-010605",
  "term": "Seco-",
  "field": "Chemistry",
  "definition": "A prefix used in chemical nomenclature to denote a compound formed by the cleavage of a ring in a parent compound, with the addition of hydrogen atoms to the resulting terminal groups. This indicates that a bond within a cyclic system has been broken. For example, a seco-steroid is derived from a steroid by ring scission.",
  "subject": "Organic and Biomolecular Chemistry",
  "references": [
    "Blue Book Guide, p. 31 (https://doi.org/10.1351/pac199971071327)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/seco/"
}