| Acronym | Definition |
|---|
| HEDP➣High-Energy-Density Physics |
| HEDP➣1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (organophosphoric acid corrosion inhibitor) |
| HEDP➣High-Explosive Dual-Purpose |
| HEDP➣Higher Education for Development Program (USAID) |
| HEDP➣Home Equity Diversification Plan (mortgage) |