A simplified drawing or plan that shows the form, structure, position, or relationship of parts of something.
The biology teacher used a diagram to show the parts of a flower.
Look at the diagram of the engine in the repair manual.
✦ From Latin diagramma, from Ancient Greek διάγραμμα (diágrafma), from διαγράφειν (diagráphein, “to mark out, delineate by lines”), from διά (diá, “through”) + γράφειν (gráphein, “to write”).
To represent or illustrate something by means of a diagram.
The engineer will diagram the new circuit design.
Please diagram the family tree for the presentation.
