particle beam

noun

Physics. a concentrated stream of particles, as electrons, neutrons, or protons, generated for studying particle interactions, nuclear structure, crystal structure, etc.
Military. a high-energy stream of such particles for use as a weapon or for antimissile defense.

Words nearby particle beam

participial, participialize, participle, particle, particle accelerator, particle beam, particle beam weapon, particle board, particle physics, particle separation, particle velocity

British Dictionary definitions for particle beam

particle beam

noun

a stream of energized particles produced by a particle accelerator
such a stream emitted by a particle beam weapon