Definition: "Aperture" refers to a small, narrow opening or slit in a structure, usually used for viewing an object's interior or making sound waves. Definition: "Aperture" is a term derived from the Latin prefix "ap," which means "to open," and the prefix "-terium," meaning "the." It originally referred to a hole in a wall or other enclosed space that was not intended for use, such as an opening into an underground cave. The word has been used to refer to any small, narrow part of a structure where light can pass through without being blocked by objects or material. In the Bible context, "aperture" is often used metaphorically to describe a narrow opening in a manuscript's text that does not interfere with its reading, though it refers specifically to the opening at the top of a scroll.