| FIR | far infrared; fold increase in resistance |
|---|---|
| PR | by way of the rectum [Lat. per rectum]; far point [of accommodation] [Lat. punctum remotum]; palindr... |
| pr | far point of accommodation [Lat. punctum remotum]; pair; per rectum; prism |
| AMP | Adenosine Mono-Phosphate |
| amp. | ample |