anatomical reference vs saying

anatomical reference and saying both are nouns.

Word	Noun	Adjective	Verb	Adverb
anatomical reference	Yes	No	No	No
saying	Yes	No	No	No

As nouns, saying is a hypernym of anatomical reference; that is, saying is a word with a broader meaning than anatomical reference:

anatomical reference: an expression that relates to anatomy
saying: a word or phrase that particular people use in particular situations

Other hypernyms of anatomical reference include expression, locution.

anatomical reference (noun)	saying (noun)
an expression that relates to anatomy	a word or phrase that particular people use in particular situations