| ORS | olfactory reference syndrome; oral rehydration solution; oral surgery, oral surgeon; Orthopaedic Res... |
|---|---|
| max | maxilla, maxillary; maximum |
| WC | ward clerk; water closet; Weber-Christian [syndrome]; wheel chair; white cell; white cell casts; whi... |
| OCP | octacalcium phosphate; ocular cicatricial pemphigoid; oral case presentation; oral contraceptive pil... |
| OET | oral endotracheal tube; oral esophageal tube |