Concentrator

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    One who concentrates.

    "Experienced classroom teachers are well acquainted with the attention-seeker, the shy girl, the aggressive boy, the poor concentrator, the slow student […]"

  2. 2
    A hub.
  3. 3
    An apparatus for the separation of dry comminuted ore, by exposing it to intermittent puffs of air.
  4. 4
    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.

Example

More examples

"Experienced classroom teachers are well acquainted with the attention-seeker, the shy girl, the aggressive boy, the poor concentrator, the slow student […]"

Etymology

From concentrate + -or.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.