beta decay(redirected from beta transformation)
Also found in: Thesaurus, Medical, Encyclopedia.
Radioactive decay in which a beta particle is emitted by an atomic nucleus.
(General Physics) the radioactive transformation of an atomic nucleus accompanying the emission of an electron. It involves unit change of atomic number but none in mass number. Also called: beta transformation or beta process
a radioactive process in which a beta particle is emitted from the nucleus of an atom.