| HDOP |
Hypertensive Disease Of Pregnancy |
| HDPE |
High Density Polyethylene |
| HDR |
Human Development Report |
| HDR |
High Dose Rate |
| HDR |
High Data Rate |
| HDR |
Hardware Design Review |
| HDRA |
High Data Rate Assembly |
| HDRBC |
Head-damaged Red Blood Cells |
| HDRF |
Heart Disease Research Foundation |
| HDRM |
High Data Rate Multiplexer |
| HDRR |
High Data Rate Recorder |
| HDRSS |
High Data Rate Storage System |
| HDS |
Herniated disc syndrome |
| HDS |
Hardware Description Sheet |
| HDT |
Heat Distortion Temperature |
| HDTV |
High-Definition Television |
| HE |
His Excellency |
| HE |
Her Excellency |
| HE |
His (Her) Excellency |
| HE |
Helium |
| HE |
High Energy Astrophysics |
| HEAD |
Hydrology Ecology And Disturbance |
| HEAL |
History Exam Assessment Layout |
| HEAL |
Health Education Aids Liaison |
| HEAO |
High Energy Astronomy Observatory |
| HEAP |
High Energy Aim Point |
| HEAR |
Hearing Education And Aural Rehabilitation |
| HEAR |
Higher Education Act Reauthorization |
| HEART |
Healing And Encouragement For Abortion Related Trauma |
| HEART |
Human Employment And Resource Training |
| HEAT |
High Energy Antimatter Telescope |
| HEC |
Heavy Engineering Corporation |
| HEC |
Higher Education Commission |
| HECT |
High-Energy Computed Tomography |
| HECV |
Helium Check Valve |
| HED |
High Energy Detector |
| HEDS |
Human Exploration and Development of Space |
| HEENT |
Head, ears, eyes, nose, throat |
| HEGFR |
Human Epidermal Growth Factor Receptor |
| HEGV |
Helium Gage Valve |
| HEHR |
Highest Equivalent Heart Rate |
| HEI |
High Energy Ignition |
| HEI |
Human Embryonic Intestine [cells] |
| HEK |
Human Embryo Kinase/ Human Embryonic Kidney |
| HEL |
Heavy Electricals Limited |
| HEL |
Heavy Electricals Limited |
| HEL |
Highly Erodible Land |
| HELCOM |
Baltic Marine Environment Protection Commission |
| HELEN |
High Energy Laser Embodying Neodymium |
| HELEN |
High Energy physics Latin-American-European Network |