secretin vs GI hormones

secretin and GI hormones both are nouns.

Word	Noun	Adjective	Verb	Adverb
secretin	Yes	No	No	No
GI hormones	Yes	No	No	No

As nouns, GI hormones is a hypernym of secretin; that is, GI hormones is a word with a broader meaning than secretin:

secretin: a gastrointestinal hormone that stimulates the secretion of water and bicarbonate from the pancreas and bile ducts whenever the stomach empties too much acid into the small intestine
GI hormones: hormones that affect gastrointestinal functioning

Other hypernyms of secretin include gastrointestinal hormone.

secretin (noun)	GI hormones (noun)
a gastrointestinal hormone that stimulates the secretion of water and bicarbonate from the pancreas and bile ducts whenever the stomach empties too much acid into the small intestine	hormones that affect gastrointestinal functioning