One who exsects; a surgeon who performs exsection; a surgical instrument for cutting out tissue.
From Latin 'exsector,' an agent noun derived from 'exsecare' with the -or suffix meaning 'one who does' the action, applied to both surgeons and their instruments.
An 'exsector' could be either a skilled surgeon performing careful removals or a specialized scalpel—medical terminology economically uses the same word for both the person and their tool.
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