| Definition/Meaning | Word/Phrase |
|---|---|
| high inaccessible place | aerie |
| very remote and inaccessible place | back of beyond |
| binocular microscope used in surgery to provide a clear view of small and inaccessible parts of the body (as in microsurgery) | operating microscope |
| disposition to be unapproachable; unfriendly and inaccessible | unapproachability |