De*mon"stra*ble (?), a. [L. demonstrabilis: cf. OF. demonstrable, F. d'emontrable.]
1.
Capable of being demonstrated; that can be proved beyond doubt or question.
The grand articles of our belief are as demonstrable as geometry.
Glanvill.
2.
Proved; apparent.
[Obs.]
Shak.
© Webster 1913.