| Abbreviation | Definition |
|---|---|
| HTAL | High Throughput Analysis Laboratory |
| HTCL | High Temperature Corrosion Laboratory |
| HTF | Human Tubal Fluid |
| HTG | hypertriglyceridemia |
| HTL | Hurricane Test Laboratory |
| HTSL | High Throughput Screening Laboratory |
| HTTL | High Temperature Test Laboratory |
| HUCSCR | Howard University Center for Sickle Cell Research |
| HUHEPL | Harvard University High Energy Physics Laboratory |
| HUMS | Hrvatska Udruga Medicinskih Sestara |
| HV | Half Value |
| HV | HantaVirus |
| HV | Healthy Volunteer |
| HV | High-Volume |
| HVE | High-Valued Experiment |
| HVL | High Voltage Laboratory |
| IACC | Institutional Animal Care Committee |
| IACUC | Institutional Animal Care and Use Committees |
| IAEC | Institutional Animal Ethics Committee |
| IAL | Integrated Analytical Laboratories |