Definition of "antitumor" []

• Counteracting or preventing the formation of malignant tumors; anticancer. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Tumor cell death caused by radiation can induce DC-mediated cytotoxic T-lymphocyte (CTL) responses and long-term antitumor immunity ["
• "The new virus demonstrated significantly higher antitumor activity in cells with high levels of nestin compared with older viruses, but there was no difference in low-nestin cells."
• "Earlier this week, NCI removed reference to the "possible direct antitumor effect" of cannabis from its website."