HDX
| Acronym | Definition |
|---|---|
| HDX | Half Duplex |
| HDX | Help Index |
| HDX | Half Duplex Transmission |
| HDX | High Definition Experience |
| HDX | Healthcare Data Exchange (Malvern, PA) |
| HDX | Hydrogen-Deuterium Exchange (chemical reaction) |
| HDX | High Density Line |
| HDX | Heavy Duty Exchange (e-commerce; Cincinnati, OH) |
| HDX | High Density Expansion (computer architecture) |