Meaning of TRIAL RUN

Pronunciation:			'trIul run
WordNet Dictionary
	Definition:		[n]  trying something to find out about it; "a sample for ten days free trial"; "a trial of progesterone failed to relieve the pain"
	Synonyms:		test, trial, tryout
	See Also:		alpha test, beta test, experiment, experimentation, field trial, road test, trial balloon