A stream of beta particles (fast-moving electrons propagating through a gas or vacuum), such as emitted by a radioactive substance.

plural of beta ray

The phenomenon that people can sometimes recover more quickly from more intense emotions or pain than from less distressing experiences, tentatively attributed to the fact that only the more intense states trigger psychological defense processes.

plural of beta-glucan

The highly virulent B.1.351 strain of the SARS-CoV-2 virus that causes COVID-19.

present participle of beta-read

Third-person singular simple present indicative form of beta-read

plural of betabux

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.

Alternative spelling of beta-carotene