thyrotropin vs thyrotrophin

thyrotropin and thyrotrophin both are nouns.

Word	Noun	Adjective	Verb	Adverb
thyrotropin	Yes	No	No	No
thyrotrophin	Yes	No	No	No

As nouns, thyrotropin and thyrotrophin are synonyms defined as:

thyrotropin and thyrotrophin: anterior pituitary hormone that stimulates the function of the thyroid gland

Other synonyms of thyrotropin include thyroid-stimulating hormone, thyrotrophic hormone, thyrotropic hormone, TSH.

thyrotropin (noun)	thyrotrophin (noun)
anterior pituitary hormone that stimulates the function of the thyroid gland	anterior pituitary hormone that stimulates the function of the thyroid gland