There are multiple definitions:

1. odontogenic keratocyst(English)

   • a benign but aggressive neoplasm of odontogenic origin, histologically characterized by a thin parakeratinized stratified squamous epithelium; aka KCOT, KOT
   • CS, KOT, KCOT
   • Dentistry, Oncology
   • https://doi.org…155/2011/159501

2. open kinetic chain(English)

   • refers to kinetic chain exercises for quadriceps strengthening after anterior cruciate ligament reconstruction with respect to return to sports
   • ACL, ACLR, CKC
   • Physical therapy, Musculoskeletal system, Injury, Sports medicine, Myocyte / muscle
   • https://doi.org…0167-006-0246-z