Last modified on 25 May 2015, at 02:00

concentrator

EnglishEdit

EtymologyEdit

concentrate +‎ -or

NounEdit

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Wikipedia

concentrator (plural concentrators)

  1. (telecommunications) A hub.
  2. (mining) An apparatus for the separation of dry comminuted ore, by exposing it to intermittent puffs of air.
    (Can we find and add a quotation of Knight to this entry?)
  3. (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.