[tri.al] n [AF, fr. trier to try] (15c) 1 a: the action or process of trying or putting to the proof: test b: a preliminary contest (as in a sport)
2: the formal examination before a competent tribunal of the matter in issue in a civil or criminal cause in order to determine such issue
3: a test of faith, patience, or stamina through subjection to suffering or temptation; broadly: a source of vexation or annoyance
4. a: a tryout or experiment to test quality, value, or usefulness b: one of a number of repetitions of an experiment
5: attempt
[2]trial adj (1555) 1: of, relating to, or used in a trial
2: made or done as a test or experiment
3: used or tried out in a test or experiment