A surgical incision or cut made in or through the coccyx region.
From Greek 'kokkyx' (coccyx) plus 'tome' meaning cut or section, combined with '-y' indicating a procedure. This surgical term was created alongside other '-tomy' procedures.
'-tomy' means making a cut (like 'anatomy' is literally 'cutting open to see inside'), so 'coccygotomy' is a surgical cut involving the tailbone—but it's rarely used today since coccygectomy (removal) is usually preferred!
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