infantile

infantile definition - medical

in·fan·tile (ĭnˈfən-tīlˌ, -tĭl)

adjective
  1. Of or relating to infants or infancy.
  2. Displaying or suggesting a lack of maturity; extremely childish.

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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