ETYM Greek beta.
The 2nd letter of the Greek alphabet.
Second letter of Gr. alphabet (B, b).

Of or relating to software or hardware that is a beta. See also beta1. Compare alpha1.

Beets; Also called: genus Beta.

A new software or hardware product, or one that is being updated, that is ready to be released to users for beta testing in real-world situations. Usually betas have most or all of the features and functionality implemented that the finished product is to have. See also beta test. Compare alpha1.