Il·lus·tra'tion, n.

n. [Lat. illustratio, Fr. illustration, Sp. ilustracion, It. illustrazione.]

1. The act of illustrating; a rendering bright, glorious, or illustrious; a making clear; explanation; elucidation.
2. The state of being illustrated, glorified, or elucidated.
3. That which illustrates; a comparison or example intended to make clear or apprehensible, or to remove obscurity; an illustrative engraving, picture, &c.