| NPD | narcissistic personality disorder; natriuretic plasma dialysate; negative pressure device; Niemann-P... |
|---|---|
| ODE | Office of Device Evaluation [of FDA] |
| OID | optimal immunomodulating dose; Organism Identification Number; oxygen insufflation device |
| OT | objective test; oblique talus; occlusion time; occupational therapist, occupational therapy; ocular ... |
| OTD | oculotrichodysplasia; oral temperature device; organ tolerance dose |