Bible Dictionaries
Spandrel

Webster's Dictionary

(1):

(n.) A narrow mat or passe partout for a picture.

(2):

(n.) The irregular triangular space between the curve of an arch and the inclosing right angle; or the space between the outer moldings of two contiguous arches and a horizontal line above them, or another arch above and inclosing them.

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