dots per inch 
Data Processing Installation 
Department of Public Information 
Department of Public Instruction 
Differential pressure indicator 
Department of Primary Industries 
Detail Program Interrelationships 
dry powder inhaler 
Data Processing Company of Iran 
Dedicated Pair-In 
Digital Process Instrument 
Digital Pseudorandom Inspection 
Direct Pickup Interference 
Disposable Personal Income 
Distributed Program Interface 
dry powder inhalers 
d postinfection 
Daily permissible intake 
daily protein intake 
Data Pathing, Inc. 
Data Processing Identifier 
Data Processing Information 
day post infection 
day post-inoculation 
days post injury 
days postimmunization 
days postimplantation 
days postinfection 
days post-injection 
days postinoculation