A glyph (pron.: /ˈɡlɪf/) is an element of writing: an individual mark on a written medium that contributes to the meaning of what is written.

In archæology, a glyph is a carved or inscribed symbol. It may be a pictogram or ideogram, or part of a writing system such as a syllable, or a logogram.

More information on glyphs in general on the Wikipedia page [1]. The Wikimedia category Glyphs is [2]. There are a number of other websites.

See also Frederick Catherwood and Arborglyph.