anestrus vs physiological state

anestrus and physiological state both are nouns.

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

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

anestrus: applies to nonhuman mammals: a state or interval of sexual inactivity between two periods of estrus
physiological state: the condition or state of the body or bodily functions

Other hypernyms of anestrus include physical condition, physiological condition.

anestrus (noun)	physiological state (noun)
applies to nonhuman mammals: a state or interval of sexual inactivity between two periods of estrus	the condition or state of the body or bodily functions