alpha radiation








noun Physics.

  1. a stream of alpha particles.

noun

  1. alpha particles emitted from a radioactive isotope

noun

  1. ionizing radiation consisting of a stream of alpha particles

n.

  1. A stream of alpha particles or a single high-speed alpha particle.

  1. A stream of alpha particles.

Particles sent out by some radioactive nuclei, each particle consisting of two protons and two neutrons bound together. Alpha particles carry a positive charge. (See beta radiation and gamma radiation.)

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