NA
NA is used in regulations to indicate something is not allowed, in medical contexts for terms like normally aspirated or nasal augment, and as the name of an online aquarium community.
Medical
No Abnormalities
Not Admitted
Normally Aspirated
Nasal Augment
Non Activin
Natural Aspiration
NorAdrenaline
NeurAminidase
Nucleoside Analogue
Not Assessed
Miscellaneous
Nelson Allen
Narcotics Anonymous
No Archers
Natalie Andrea
Numeric Aperture
Non Answer
Not Animate
Naturalized Archiver
Natural Aspirated
Nestle As
No Attachment
Non Alcoholic
No As
Naturaly Aspirated
Non Allocating
Needs Action
Novice Agility
Nucleic Acids
New Adult
No Assets
Network Appearance
Community
Governmental
Not Approved
No Answer
Native American
Not Allowed
Not Ascertainable
No Alcohol
Nigeria Army
New Amsterdam
Naval Academy
National Academy
National Assembly
Next Action
Not Approvable
Nation Assistance
International
Academic & Science
Numerical Aperture
Negative Alignment
Natural Amber
Not Active
Neutral Axis
Nucleic Acid
Non-Attainment
Non-Anomalous
Numerical Analysis
Regional
Computing
Internet
Business
Non-Asbestos
Not Advertised
National Association
Nurse Anesthetist
Non-Antistatic
Non-Availability
Nursing Assistant
National And
Necessary Action
National Bank of Canada
Nabisco Holdings Corporation