acromion vs acromial process

acromion and acromial process both are nouns.

Word	Noun	Adjective	Verb	Adverb
acromion	Yes	No	No	No
acromial process	Yes	No	No	No

As nouns, acromion and acromial process are synonyms defined as:

acromion and acromial process: the outermost point of the spine of the shoulder blade

acromion (noun)	acromial process (noun)
the outermost point of the spine of the shoulder blade	the outermost point of the spine of the shoulder blade