| HF | Hageman factor; haplotype frequency; hard filled [capsule]; hay fever; head of fetus; head forward; ... |
|---|---|
| HPLC | high-performance liquid chromatography; high-power liquid chromatography; high-pressure liquid chrom... |
| HT | Hashimoto thyroiditis; hearing test; hearing threshold; heart; heart transplantation, heart transpla... |
| LS PACS | low-speed picture archive and communication system |
| Meth | methedrine; Methamphetamine (also known as: speed, ice, and crystal) |