̷ ̷ˈsekshən noun
Etymology: Latin resection-, resectio, from resectus (past participle of resecare to cut off) + -ion-, -io -ion — more at resect
1. obsolete : an act of cutting or paring off
2. : the surgical removal of part of an organ or structure
gastric resection
resection of the lower bowel
— sometimes distinguished from excision
3. : a method in surveying by which one determines a position on a map after it has been properly oriented by drawing lines from two or more distant objects through their plotted positions on the map