stoppage vs haemostasia

stoppage and haemostasia both are nouns.

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

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

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

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

stoppage (noun)	haemostasia (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