| CHI | closed head injury; creatinine height index |
|---|---|
| HA | H antigen; Hakim-Adams [syndrome]; halothane anesthesia; Hartley [guinea pig]; headache; health alli... |
| HETP | height equivalent to a theoretical plate; hexaethyltetraphosphate |
| HofF | height of fundus |
| Ht | height of heart; heterozygote; hyperopia, total; hypothalamus |