ACE vs angiotensin converting enzyme

ACE and angiotensin converting enzyme both are nouns.

Word	Noun	Adjective	Verb	Adverb
ACE	Yes	No	No	No
angiotensin converting enzyme	Yes	No	No	No

As nouns, ACE and angiotensin converting enzyme are synonyms defined as:

ACE and angiotensin converting enzyme: proteolytic enzyme that converts angiotensin I into angiotensin II

Other synonyms of ACE include angiotensin-converting enzyme.

ACE (noun)	angiotensin converting enzyme (noun)
a major strategic headquarters of NATO; safeguards an area extending from Norway to Turkey	proteolytic enzyme that converts angiotensin I into angiotensin II
proteolytic enzyme that converts angiotensin I into angiotensin II