thyrotrophin vs thyrotropin

thyrotrophin and thyrotropin both are nouns.

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

As nouns, thyrotrophin and thyrotropin are synonyms defined as:

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

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

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