| AP | accessory pathway; accounts payable; acid phosphatase; acinar parenchyma; action potential; active p... |
|---|---|
| App, app | appendix |
| appx | appendix |
| RD | radial deviation; radiology department; rate difference; Raynaud disease; reaction of degeneration; ... |
| RID | radial immunodiffusion; remission-inducing drug; ruptured intervertebral disc |