| RMA | rapid membrane assay; refuses medical advice; Registered Medical Assistant; relative medullary area;... |
|---|---|
| RMP | rapidly miscible pool; regional medical program; regional myocardial infarction; resting membrane po... |
| RMT | Registered Music Therapist; relative medullary thickness; retromolar trigone; right mentotransverse ... |
| ROA | right occipitoanterior [fetal position] |
| ROI | reactive oxygen intermediate; region of interest; right occipitolateral [fetal position] |