n.
The final stage in the testing of new software before its commercial release, conducted by testers other than its developers.
beta-test be'ta-test' (bā'tə-tĕst', bē'-) v.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.