Alpha decay
a radioactive process in which an alpha particle is emitted from the nucleus of an atom, decreasing its atomic number by two.
noun
the radioactive decay process resulting in emission of alpha particles
alpha decay
the radioactive decay of an atomic nucleus by emission of an alpha particle (two protons bound to two neutrons). when an element undergoes alpha decay, its atomic number decreases by two.
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a blood plasma protein that is separable from other globulins by electroph-r-sis. alpha globulin n. a type of globulin in blood plasma that exhibits great colloidal mobility in electrically charged neutral or alkaline solutions.