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oncolysis

(ŏn-kŏlĭ-sĭs, ŏng-)
n.
  1. The destruction of a tumor or tumor cells.
  2. The reduction of any swelling or mass.
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Related formson′co•lytic (ŏng′kə-lĭtĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.