diagraph noun. ['dʌɪǝgrɑ:f] E18.
[Branch I from Greek diagraphē, formed as DIA-¹, -GRAPH. Branch II from French diagraphe, from stem of Greek diagraphein (see DIAGRAM).]
I. 1. A description. rare. Only in E18.

2. A diagram in logic. rare. M19.

[TahlilGaran] English Dictionary ▲

diagraph
II.

3. An instrument for mechanically drawing projections or making copies, consisting of a pen governed by cords and pulleys which in turn are controlled by a pointer. Now rare. M19.

4. A combined protractor and scale for plotting. L19.

■ dia'graphic adjective (now rare) of or pertaining to drawing or graphic representation M17.

■ diagraphical adjective = diagraphic: only in E17.

[TahlilGaran] English Dictionary ▲