| h | Greek letter eta; absolute viscosity |
|---|---|
| H & N | Head & Neck |
| H + Hm | compound hypermetropic astigmatism |
| H and E | hematoxylin and eosin [stain] |
| H&A | Ins health and accident insurance |
| H&C | hot and cold |
| H&CP | hospital and community psychiatry |
| H&D | Hunter and Driffield [curve] |
| H&E | hematoxylin and eosin [stain]; hemorrhage and exudate; heredity and environment |
| H&H | hematocrit and hemoglobin |