The second letter of the Greek alphabet (Β, β), preceded by alpha (Α, α) and followed by gamma, (Γ, γ). In modern Greek it represents the voiced labiodental fricative sound of v found in the English words have and vase.

(computing) To preliminarily release computer software for initial testing prior to final release. / (chiefly Internet) To beta-read a text.

Identifying a molecular position in an organic chemical compound. / Designates the second in an order of precedence.

Betamax.

present participle of beta

Third-person singular simple present indicative form of beta

plural of beta

simple past tense and past participle of beta

plural of beta particle

(physics) The radiation of beta particles as a result of radioactive decay.