Meaning of PARTICLE BEAM in English

PARTICLE BEAM

1. Physics. a concentrated stream of particles, as electrons, neutrons, or protons, generated for studying particle interactions, nuclear structure, crystal structure, etc.

2. Mil. a high-energy stream of such particles for use as a weapon or for antimissile defense.

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .