Illustration
Illustration , noun
[Latin illustratio: compare French illustration.]
1.
The act of illustrating; the act of making clear and distinct; education; also, the state of being illustrated, or of being made clear and distinct.
2.
That which illustrates; a comparison or example intended to make clear or apprehensible, or to remove obscurity.
3.
A picture designed to decorate a volume or elucidate a literary work.