| vary in diameter | 0.25 |
| light | 0.78 |
| lens | 0.25 |
| specialized uses | 0.25 |
| thin, tube-like instrum… | 0.62 |
| device | 0.38 |
| inserted into the body | 0.68 |
| reprocessed | 0.62 |
| passed through the mouth | 0.47 |
| removed | 0.47 |
| inserted through small … | 0.47 |
| cleaned | 0.38 |
| shown in fig | 0.25 |
| used to provide access | 0.25 |