acapnia vs physiological state

acapnia and physiological state both are nouns.

Word	Noun	Adjective	Verb	Adverb
acapnia	Yes	No	No	No
physiological state	Yes	No	No	No

As nouns, physiological state is a hypernym of acapnia; that is, physiological state is a word with a broader meaning than acapnia:

acapnia: a state in which the level of carbon dioxide in the blood is lower than normal; can result from deep or rapid breathing
physiological state: the condition or state of the body or bodily functions

Other hypernyms of acapnia include physical condition, physiological condition.

acapnia (noun)	physiological state (noun)
a state in which the level of carbon dioxide in the blood is lower than normal; can result from deep or rapid breathing	the condition or state of the body or bodily functions