gigantism Hear it!

gigantism definition

gi·gan·tism (jī gan′tiz′əm, jī′gan-)

noun

  1. the quality or state of being gigantic
  2. abnormally great growth of the body, due to an excessive production of growth hormone by the anterior lobe of the pituitary gland

Etymology: see gigantic & -ism

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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