Naphthylethylenediamine Dihydrochloride - Organic chemistry
NASA/IPAC Extragalactic Database (GDD)
National Elevation Dataset - A product of United State Geological Survey (GIS)
National Endowment for Democracy (EA)
Naval Equipment Department - British military (DMA)
Navigation Error Data (MUGU)
Nde-Gbite - Language code (ETLW)
Neptune Company, Annapolis, MD - Manufacturer code for watercraft hull identification number (USCG)
Network Engineering Division (ACAE)
NeverEnding Disk - Computer software - Sytron Corp.
Newark - Delaware - Seismograph station code, US Geological Survey (SEIS)
New Editor - Computer program - Air Force (MCD)
New England Division - Army Engineers
New English Dictionary - i.e., the Oxford English Dictionary
No-Effect Dose - Medicine
No Evidence of Disease
No Expiration Date
No Export Demand - Telegraphy (PCTE)
Noise Emitting Diode (SAUS)
Nonenzymatic Glycosylation - Biochemistry (DAVI)
Non-Executive Director - Business
Normal Equivalent Deviate (or Deviation) (SAUS)
North, East, and Down
Northeastern University, Boston, MA - OCLC symbol (OCLC)
Northrop Electronics Division (ACAE)
Nuclear Energy Division - General Electric Co.
Nuclear Engineering Directorate - Army
Nuke Encryption Device
Nedarim (BJA)
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