| Acronym | Definition |
|---|
| TDEC➣Tennessee Department of Environment and Conservation |
| TDEC➣The Drexel Engineering Curriculum |
| TDEC➣Tennessee Department of Education |
| TDEC➣Technology and Distance Education Committee (Adventist Education North American Division) |
| TDEC➣Time Delay Engine Cool (automatic transfer switch setting) |
| TDEC➣Tumor-Derived Endothelial Cell (oncology) |