excision (n.)

"the act of full or partial cutting off or away by surgical operation," especially of a small, diseased part of the body, late 15c., from Middle French excision (14c.) and directly from Latin excisionem (nominative excisio) "a destroying," noun of action from past participle stem of excidere "to cut out; destroy," from ex "out" (see ex-) + -cidere, combining form of caedere "to cut down" (from PIE root *kae-id- "to strike").

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