eyepiece
/ˈaɪˌpiːs/
noun
- The lens or group of lenses in a microscope, telescope, or other optical instrument that you look through.
- Binoculars have an eyepiece for each eye that can be focused separately.
- She adjusted the eyepiece of the microscope to see the cells more clearly.
- The telescope's eyepiece was foggy, so he wiped it with a cloth.
Synonyms