debulking operation

[dē-bŭlkĭng]
n.
  1. The excision of a major part of a malignant tumor that cannot be completely removed surgically, performed to enhance the effectiveness of radiation therapy or chemotherapy.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.