| Rank | Abbreviation | Meaning |
|---|
| ***** | APDI | anteroposterior dysplasia indicator
| |
| *** | APDI | Application Programming and Development, Inc.
| |
| *** | APDI | Association of Private Detectives of India
| |
| *** | APDI | Average Post Detection Integration
| |
| *** | APDI | API DENTAL, INC.
| |
| *** | APDI | Africa Participatory Development Initiative
| |
| *** | APDI | Anisotropic Point-dipole Interaction (model For Calcg. Long-range Intermol. Dispersion Forces)
| |
| ** | APDI | Associação Portuguesa de Direito Intelectual
| |
| ** | APDI | Antisymmetrized Product of Delocalized
| |
| ** | APDI | Association of Professional Driving Instructors
| |
| * | APDI | Adaptive Polarization Difference Imaging
| |
| * | APDI | Asian and Pacific Development Institute
| |
| * | APDI | Associação Portuguesa da Doença Inflamatória
| |
| * | APDI | Adult Personal Data Inventory
| |
| * | APDI | Asociación Profesional de Diseñadores de Iluminación
| |
| * | APDI | Automotive Parts Distribution International
| |
| * | APDI | African Peace and Democratic Institute
| |
| * | APDI | Association of Professional Dancers of Ireland
| |
| * | APDI | Abest Photo Disk Imaging
| |
| * | APDI | Attorneys Professional Development Initiative
| |