growth hormone

noun
any substance that stimulates or controls the growth of an organism, especially a species-specific hormone, as the human hormone somatotropin, secreted by the anterior pituitary gland. Abbreviation: GH

Origin:
1920–25

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Collins
World English Dictionary
growth hormone
 
n
somatotrophin, Also called: human growth hormone a hormone synthesized in and secreted by the anterior lobe of the pituitary gland that promotes growth of the long bones in the limbs and increases the synthesis of protein essential for growth

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

growth hormone n.
Abbr. GH
See somatotropin.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
growth hormone  
  1. A polypeptide hormone secreted by the anterior portion of the pituitary gland that promotes growth by stimulating protein synthesis. Growth hormone also acts on the liver to produce peptides called somatomedins, which stimulate growth of bone, cartilage, and muscle. Also called somatotropin.

  2. Any of various natural or synthetic substances that regulate the growth of plants. Auxins in plants are growth hormones.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
My friend recently offered me some human growth hormone, which he swears has
  made him look years younger.
Now new research seems to show that bovine growth hormone in the food supply
  may be responsible.
They are also fed bovine growth hormone to make them unnaturally large, all in
  the name of profit.
Taller heigh means a lot of growth hormone which increases chances for getting
  cancer.
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