Pronunciation: (mu-lig'nun-sē), [key]
—pl. -cies for 2, 3.
1. the quality or condition of being malignant.
2. malignant character, behavior, action, or the like: the malignancies of war.
3. a malignant tumor. Also,ma•lig'nance (for defs. 1, 2).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.