The Collaborative International Dictionary
Exaeresis
Exaeresis \Ex*[ae]r"e*sis\, n. [NL., fr. Gr.? a taking away.] (Surg.) In old writers, the operations concerned in the removal of parts of the body.
Wiktionary
exaeresis
n. (context surgery obsolete English) The operations involved in the removal of parts of the body.