| Acronym | Definition |
|---|
| CDEI➣Certified Distance Education Instructor (teacher certification; International Distance Education Certification Center) |
| CDEI➣Centre de Documentation en Éthique des sciences de la vie et de la santé de l'INSERM |
| CDEI➣China Dental Exhibition International (trade show) |
| CDEI➣Centromere DNA Element I |