Oleograph
Pronunciation : O`le*o*graph
Part of Speech : n.
Etymology : [L. oleum oil + -graph.]
Definition : 1. (Chem.)
Defn: The form or figure assumed by a drop of oil when placed upon water or some other liquid with which it does not mix.
2. (Painting)
Defn: A picture produced in oils by a process analogous to that of lithographic printing.
Source : Webster's Unabridged Dictionary, 1913