(noun)
trying something to find out about it
a sample for ten days free trial
a trial of progesterone failed to relieve the pain
(noun)
an annoying or frustrating or catastrophic event
his mother-in-law's visits were a great trial for him
(noun)
the act of testing something
in the experimental trials the amount of carbon was measured separately
he called each flip of the coin a new trial
(noun)
the act of undergoing testing
candidates must compete in a trial of skill
(noun)
(law) the determination of a person's innocence or guilt by due process of law
he had a fair trial and the jury found him guilty
most of these complaints are settled before they go to trial
(noun)
(sports) a preliminary competition to determine qualifications
the trials for the semifinals began yesterday