DIA - Defense Intelligence Agency Outline Plotting System
Diffuse Obstructive Pulmonary Syndrome - Medicine (MAE)
Digital Optical Projection System (IEEE)
Dihydroxyphenylserine - Biochemistry
Dioleoylphosphatidylserine - Biochemistry
Direct Optical Position Sensor - Instrumentation
Directorate of Personnel Stores (SAUO)
Display Observer Performance Study (SAUS)