ditriglyph (iou)

ditriglyph noun. E18.
[French ditriglyphe, formed as DI-2 + triglyphe TRIGLYPH.]
Architecture.
The space between two triglyphs. rare. E18.
A spacing between columns of the Doric order which allows the use of two triglyphs in the frieze, between those over the columns; a horizontal distance in Doric architecture regarded as containing two triglyphs. L18.
ditri'glyphic adjective M19.