beta (def 6).
(stock exchange) a measure of the extent to which a particular security rises or falls in value in response to market movements
- Beta conversion
- Beta crucis
a star of the first magnitude in the constellation Southern Cross.
- Beta decay
a radioactive process in which a beta particle is emitted from the nucleus of an atom, raising the atomic number of the atom by one if the particle is negatively charged, lowering it by one if positively charged. noun the radioactive transformation of an atomic nucleus accompanying the emission of an electron. It involves unit […]
a brand name for povidone-iodine.