n. & v.
--n.
1. a drawing showing the general scheme or outline of an object and its parts.
2 a graphic representation of the course or results of an action or process.
3 Geom. a figure made of lines used in proving a theorem etc.
--v.tr. (diagrammed, diagramming; US diagramed, diagraming) represent by means of a diagram.
Derivatives:
diagrammatic adj. diagrammatically adv.
Etymology: L diagramma f. Gk (as DIA-, -GRAM)