Il`lus*tra"tion (?), n. [L.
illustratio: cf. F. 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.