adj. Growing or spreading rapidly to the point of harm.
the GNU version of the Collaborative International Dictionary of English
adj. Like a cancer; having the qualities or virulence of a cancer; affected with cancer.
The Century Dictionary and Cyclopedia
Like cancer; virulent; also, affected with cancer.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. like a cancer; an evil that grows and spreads
adj. relating to or affected with cancer
Word Usage
"The President was infuriated that government efforts to eradicate poverty and improve livelihoods were undermined by what he called cancerous corruption that had eaten into government departments."