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[ree-in-fawrs-muh nt, -fohrs-] /ˌri ɪnˈfɔrs mənt, -ˈfoʊrs-/
the act of reinforcing.
the state of being reinforced.
something that reinforces or strengthens.
Often, reinforcements. an additional supply of personnel, ships, aircraft, etc., for a military force.
a system of steel bars, strands, wires, or mesh for absorbing the tensile and shearing stresses in concrete work.
  1. a procedure, as a reward or punishment, that alters a response to a stimulus.
  2. the act of reinforcing a response.
Origin of reinforcement
1600-10; reinforce + -ment
Related forms
nonreinforcement, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for reinforcement
Contemporary Examples
Historical Examples
  • reinforcement came from a band of philosophic thinkers of whom Wordsworth and Coleridge were the pioneers.

  • It was evident that all hope of reinforcement from France was vain.

  • The bourgeois looked in stupefaction at this reinforcement that was about to join the attacking party.

    Chicot the Jester Alexandre Dumas, Pere
  • I cannot fight the French, in this moderate weather, without a reinforcement.

    The Two Admirals J. Fenimore Cooper
  • The kloof was strewn with bodies of khakies, who were sent up as reinforcement and pitilessly shot down by the burghers.

    On Commando Dietlof Van Warmelo
  • The arrival of the reinforcement moved the camp to interest.

    On the Heels of De Wet The Intelligence Officer
  • The only good effect of the reinforcement was to arrest for a while the pursuit of the cavalry, and thus to save many lives.

  • He got by mere accident, as we say, a reinforcement of Spaniards.

    True Words for Brave Men Charles Kingsley
Word Origin and History for reinforcement

c.1600, "act of reinforcing," from reinforce + -ment. Meaning "an augmentation, that which reinforces" is from 1650s. Related: Reinforcements.

Online Etymology Dictionary, © 2010 Douglas Harper
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reinforcement in Medicine

reinforcement re·in·force·ment (rē'ĭn-fôrs'mənt)

  1. The act or process of reinforcing.

  2. Something that reinforces.

  3. The occurrence or experimental introduction of an unconditioned stimulus along with a conditioned stimulus.

  4. The strengthening of a conditioned response by such means.

  5. An event, a circumstance, or a condition that increases the likelihood that a given response will recur in a situation like that in which the reinforcing condition originally occurred.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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