Bible Dictionaries
Oleograph

Webster's Dictionary

(1):

(n.) A picture produced in oils by a process analogous to that of lithographic printing.

(2):

(n.) The form or figure assumed by a drop of oil when placed upon water or some other liquid with which it does not mix.

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