| Abbreviation | Definition |
|---|---|
| HgbA1c | Hemoglobin A1c |
| HGH | Hall Growth Hormone |
| HH | Hemoglobin and Hematocrit |
| HHb | reduced Hemoglobin (deoxyHemoglobin) |
| HHNK | Hyperosmolar Hyperglycemia Non-Ketotic |
| HHV | Human Herpes Virus |
| HI | Haemagglutination Inhibition |
| HIB | Hemophilus Influenzae type B (vaccine) |
| HID | Human Identification |
| HIL | Heavy Ion Laboratory |
| HIL | Human Immunology Laboratory |
| HILL | High Intensity Laser Laboratory |
| HIMS | Human Intervention and Motivation Study |
| HIRL | Haptic Interface Research Laboratory |
| HIRL | Hospital Infection Research Laboratory |
| HIRT | Head Injury Retrieval Trial |
| HISR | Health Information Systems Research |
| HISTO | Histoenzymological |
| HIT | High In Trial |
| HITL | Human Interface Technology Laboratory |