stoppage vs hemostasia

stoppage and hemostasia both are nouns.

Word	Noun	Adjective	Verb	Adverb
stoppage	Yes	No	No	No
hemostasia	Yes	No	No	No

As nouns, hemostasia is a hyponym of stoppage; that is, hemostasia is a word with a more specific, narrower meaning than stoppage:

stoppage: the act of stopping something
hemostasia: surgical procedure of stopping the flow of blood (as with a hemostat)

Other hyponyms of stoppage include stand-down, standdown, haemostasia, haemostasis, hemostasis.

stoppage (noun)	hemostasia (noun)
the act of stopping something	surgical procedure of stopping the flow of blood (as with a hemostat)
an obstruction in a pipe or tube
the state of inactivity following an interruption