The meaning of the Acronym NA is...

NA is

• Numerical Aperture

More Meanings For NA:

• Sodium
• Not Active
• Nucleic Acid
• Numerical Aperture
• North American
• Nursing Assistant
• Not Available
• Neutral Axis
• Non Attainment
• National And
• National Association
• Necessary Action
• Neighborhood Associations
• Neighborhood Association
• Not Applicable

NA is also in:

• Chemistry
• Educational
• Electronics
• Firms
• General
• Geology
• Libraries
• Physics
• Professional Organizations
• Universities