National Basketball Association
Net Book Agreement
National Basketball Association's
National Board of Aviation
National Business Association
Network Behavior Analysis
Nominated Barring Authority
Narrow-Beam Absorption
National Bankers Association
National Base station
National Beef Association
National Bison Association
National Boxing Association
National Brassfounders Association
National Buffalo Association
National Building Agency
National Bulldogge Association
NATO Board of Auditors
N-bromoacetamide
n-butyl acrylate
n-butyl alcohol
Nepal Bar Association
net building area
Neuromuscular Blocking Agent
neuron-binding activity
New Beginnings Academy
None-Blocking Architecture
number born alive
number of piglets born alive
number of pigs born alive