| Abbreviation | Definition |
|---|---|
| HRC | Heart Rate Control |
| HRC | Human Respiratory Coronavirus |
| HRM | Heart Rate Monitor |
| HRR | Heart Rate Reserve |
| HRRR | Heart regular rate and rhythm |
| HRSD | Hamilton Rating Scale For Depression |
| HRT | Humor Replacement Therapy |
| HRTF | Head-Related Transfer Function |
| HRV | Heart Rate Variability |
| HS | Habitual Snoring |
| HS | Health Safety |
| HS | Heart Sounds |
| HS | Heart Stimulant |
| HS | Hora Somni (at bedtime) |
| HS | Hours of Sleep |
| HSA | horse serum albumin |
| HSAM | Heart Sounds And Murmurs |
| HSAM | Highly Superior Autobiographical Memory |
| HSC | hematopoietic stem cell |
| hsCRP | High-sensitivity C-reactive protein |