Definition of human growth hormone in US English:

human growth hormone

noun

Physiology Medicine
  • The human form of growth hormone (somatotropin); (also) a pharmaceutical preparation of this, originally obtained from pituitaries at autopsy, later produced by recombinant DNA technology, and used chiefly to treat children with pituitary dwarfism; abbreviated HGH.

Origin

1950s; earliest use found in The Albuquerque Journal.