Bible Dictionaries
Eyepiece

Webster's Dictionary

(n.) The lens, or combination of lenses, at the eye end of a telescope or other optical instrument, through which the image formed by the mirror or object glass is viewed.

Bibliography Information
Webster, Noah. Entry for 'Eyepiece'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​e/eyepiece.html. 1828.