end·ar·te·rec·to·my 
(ĕn′där-tə-rĕktə-mē)
(ĕn′där-tə-rĕktə-mē)n. pl. end·ar·te·rec·to·mies
Surgical excision of the inner lining of an artery that is clogged with atherosclerotic buildup.
[New Latin endartērium, inner lining of an artery (ENDO- + Latin artēria, artery; see ARTERY) + -ECTOMY.]