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TRH
tri-
triable
triacid
Triad
triad
triage
trial
trial and error
trial balance
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trial and error
tri·al and er·ror


noun 
Definition:
 
trying of different alternatives: a method of finding a satisfactory solution or means of doing something by experimenting with alternatives and eliminating failures
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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