thyroid hormone vs hormone

thyroid hormone and hormone both are nouns.

Word	Noun	Adjective	Verb	Adverb
thyroid hormone	Yes	No	No	No
hormone	Yes	No	No	No

As nouns, hormone is a hypernym of thyroid hormone; that is, hormone is a word with a broader meaning than thyroid hormone:

thyroid hormone: any of several closely related compounds that are produced by the thyroid gland and are active metabolically
hormone: the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect

Other hypernyms of thyroid hormone include endocrine, internal secretion.

thyroid hormone (noun)	hormone (noun)
any of several closely related compounds that are produced by the thyroid gland and are active metabolically	the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect