Here you will find one or more explanations in English for the word Concentrator.
Also in the bottom left of the page several parts of wikipedia pages related to the word Concentrator and, of course, Concentrator synonyms and on the right images related to the word Concentrator.
Concentrator
Concentrator Con"cen*tra`tor, n. (Firearms)
A frame or ring of wire or hard paper fitting into the
cartridge case used in some shotguns, and holding the shot
together when discharged, to secure close shooting; also, a
device for slightly narrowing the bore at the muzzle for the
same purpose.
Concentrator
Concentrator Con"cen*tra`tor, n. (Mining)
An apparatus for the separation of dry comminuted ore, by
exposing it to intermittent puffs of air. --Knight.
Meaning of Concentrator from wikipedia