| PR | by way of the rectum [Lat. per rectum]; far point [of accommodation] [Lat. punctum remotum]; palindr... |
|---|---|
| BI | background interval; bacterial or bactericidal index; base-in [prism]; basilar impression; Billroth ... |
| AIS | Abbreviated Injury Scale; amniotic infection syndrome; androgen insensitivity syndrome; anterior int... |
| NBI | neutrophil bactericidal index; no bone injury; non-battle injury |
| PI | first meiotic prophase; isoelectric point; pacing impulse; package insert; pancreatic insufficiency;... |