Definitionen
1.NounThe hole to which the viewer places his or her eye in a device such as a telescope.
2.NounThe hole in a mask, helmet, or costume corresponding to the position of the eye, allowing the eye to look through it.
3.NounThe hole in the face where the eye resides.
4.NounThis term needs a definition. Please help out and add a definition, then remove the text {{rfdef}}.