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Meaning of reducer

re•duc•er

Pronunciation: (ri-d'sur, -dy'-), [key]
— n.
  1. a person or thing that reduces.
    1. an oxidizing solution for lessening the density of an exposed negative.
    2. a developing agent.
  2. (in plumbing) a coupling decreasing in diameter at one end. Cf.(def. 2).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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