- the act of removal; an .
- Surgery. the surgical removal of a foreign body or of tissue.
late 15c., from Middle French excision (14c.) and directly from Latin excisionem (nominative excisio), noun of action from past participle stem of excidere (see (v.)).
- Surgical removal by cutting, as of a tumor or a portion of a structure or organ.exsection
- A recombination event in which a genetic element is removed.