pictograph

Concise Oxford English Dictionary © 2008 Oxford University Press:
pictograph /ˈpɪktə(ʊ)ɡrɑːf/ (also pictogram)

▶noun

• 1 a pictorial symbol for a word or phrase.

• 2 a pictorial representation of statistics on a chart, graph, or computer screen.

– derivatives
pictographic adjective,
pictography noun.

– origin C19: from L. pict-, pingere ‘to paint’ + -graph.