1. The use of pictorial symbols to communicate; picture writing with symbols that may be either ideographic or phonetic in function.
2. A picture representing a word or idea; a hieroglyph.
3. A record in hieroglyphic symbols.
4. A pictorial representation of numerical data or relationships, especially a graph, but having each value represented by a proportional number of pictures.
5. A vision test chart for illiterates.
6. A record consisting of pictorial symbols; such as, prehistoric cave drawings.
Two ancient cave dwellers are creating pictographs.