| 1. | Psychology. a set of mental tests designed to measure the general intelligence of individuals unable to read and write adequately or at all, used by the U.S. Army in World War I. Compare alpha test. |
| 2. | Computers. a quality-control technique in which hardware or software is subjected to trial in the environment for which it was designed, usually after debugging by the manufacturer and immediately prior to marketing. |
[bey-tuh-test] 
| Computers. to subject (software or hardware) to a beta test. |
| beta test n. The final stage in the testing of new software before its commercial release, conducted by testers other than its developers. be'ta-test' (bā'tə-těst', bē'-) v. |
təˌtɛst