Bible Dictionaries
Aperture

Webster's Dictionary

(1):

(n.) An opening; an open space; a gap, cleft, or chasm; a passage perforated; a hole; as, an aperture in a wall.

(2):

(n.) The act of opening.

(3):

(n.) The diameter of the exposed part of the object glass of a telescope or other optical instrument; as, a telescope of four-inch aperture.

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