From Wiktionary, the free dictionary
From lexi- + -graph.
lexigraph (plural lexigraphs)
- (linguistics) A lexigram or ideograph, a graphical depiction of a single word.
2006, Noël J. Nickson, Laurence E. R. Picken, Music from the Tang Court: Some Ancient Connections Explored[1], →ISBN, page 50:"Be that as it may, it is certain that the lexigraph for hayashi is not a Japanese creation, but a nowadays-forgotten Chinese character..."
2006, James A.W. Heffernan, “Speaking for Pictures”, in Writing and Seeing: Essays on Word and Image[2], →ISBN, page 43:"He does not want them to be read as we might read a lexigraph, a postmodern painting of words such as Joseph Kosuth's red..."