the GNU version of the Collaborative International Dictionary of English
adj. Fit or possible to be tried; liable to be subjected to trial or test.
adj. Liable to undergo a judicial examination; properly coming under the cognizance of a court.
The Century Dictionary and Cyclopedia
Capable of being tried or tested; suited for experiment.
Subject to legal trial; capable of being brought under judicial prosecution or determination.
Word Usage
"If these provisions are enacted, the president would have to detain certain suspects in military custody, even if potential charges against the suspect are triable only in federal criminal courts and not military commissions."