- the act of removal; an excising.
- 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 excise (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.