the GNU version of the Collaborative International Dictionary of English
adj. Capable of being demonstrated; that can be proved beyond doubt or question.
adj. Proved; apparent.
The Century Dictionary and Cyclopedia
Capable of being demonstrated; susceptible of being proved beyond doubt or contradiction.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. necessarily or demonstrably true
adj. capable of being demonstrated or proved
Word Usage
"He said more than 1,000 hostages were released thanks to the intervention of Mr. Berezovsky, who he described as a "demonstrable friend to British interests.""