growth hormone vs human growth hormone

growth hormone and human growth hormone both are nouns.

Word	Noun	Adjective	Verb	Adverb
growth hormone	Yes	No	No	No
human growth hormone	Yes	No	No	No

As nouns, growth hormone and human growth hormone are synonyms defined as:

growth hormone and human growth hormone: a hormone produced by the anterior pituitary gland; promotes growth in humans

Other synonyms of growth hormone include somatotrophic hormone, somatotrophin, somatotropic hormone, somatotropin, STH.

growth hormone (noun)	human growth hormone (noun)
a hormone produced by the anterior pituitary gland; promotes growth in humans	a hormone produced by the anterior pituitary gland; promotes growth in humans