retardation

retardation definition - medical

re·tar·da·tion (rēˌtär-dāˈshən)

noun
  1. The condition of being relatively slow in mental, emotional, or physical development.
  2. The extent to which something is held back or delayed.
  3. Mental retardation.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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