| REL | rate of energy loss; recommended exposure limit; resting expiratory level |
|---|---|
| RHR | renal hypertensive rat; resting heart rate |
| RME | rapid maxillary expansion; resting metabolic expenditure; right mediolateral episiotomy |
| RMP | rapidly miscible pool; regional medical program; regional myocardial infarction; resting membrane po... |
| RMR | relative maximum respone; resting metabolic rate; right medial rectus [muscle] |