Wiktionary
n. (context physics English) A beam of atoms, ions or subatomic particles that has been accelerated by some device and collimated by magnets and/or electrostatic lenses
WordNet
n. a collimated flow of particles (atoms or electrons or molecules)
Wikipedia
A particle beam is a stream of charged or neutral particles, in many cases moving at near the speed of light.
There is a difference between the creation and control of charged particle beams and neutral particle beams, as only the first type can be manipulated to a sufficient extent by devices based on electromagnetism. The manipulation and diagnostics of charged particle beams at high kinetic energies using particle accelerators are main topics of accelerator physics.
Usage examples of "particle beam".
I had no doubt that the rifle would work perfectly in hard vacuum -- either flechette cloud, energy lance, charged particle beam, solid slug, or hyper-k.
How would we justify the most recent destabilizing developments of killer-satellites, particle beam weapons, lasers, neutron bombs, cruise missiles, and the proposed conversion of areas the size of modest countries to the enterprise of hiding each intercontinental ballistic missile among hundreds of decoys?
Maybe particle beam weapons like supposedly they used to zap some of our missiles on The Night of The War.
As expected, the Enemy targets all of the projectiles before they strike, vaporizing them with flickering lances of laser and particle beam fire, but the distraction gioes me the time I need÷.
Two of my decoys are destroyed by bursts of particle beam fire from the target Then the beams are directed at me, and I release control of the decoys, having gotten as much advantage from the deception as possible.
A particle beam blasted a hole in the top of the machine, hitting what he thought must be the main engine.
Riane had limited experience with the goron-particle beam, had only used it against Gyrgon ion-based weaponry.
A particle beam flares from the north, scattering from my screens in coruscating flashes of light and heat.
That particle beam weapon he talks about is still only experimental.
A particle beam going in one direction could be made to collide with another beam going in the opposite direction, and then—.
The charged photon, particle beam, at the densities required to destroy a vessel, is inherently unstable.