diagrammed

Diagrammed is the past tense and past participle of the verb diagram. To diagram something is to represent it with a diagram—a visual figure that uses lines, shapes, and labels to convey structure, relationships, or sequence. When something is diagrammed, it has been turned into such a diagram for purposes of analysis, instruction, or communication.

Etymology: The term diagram comes from Greek diagramma, from dia- “through” or “across” + gramma “a thing written.” The English verb diagrammed therefore follows standard regular-verb formation, with -ed marking the past tense and past participle.

Usage: Diagrammed appears in technical and educational writing. It can describe the completed creation of a diagram or the status of a document that includes one. In science, engineering, and information design, data sets, processes, or layouts are diagrammed to reveal relationships, sequence, or function. It is often contrasted with diagramming, the present participle used for the ongoing act of creating diagrams, and with diagrammatic, an adjective describing things related to or expressed by diagrams.

Examples: The map was diagrammed to emphasize topographic features. The workflow was diagrammed to show the sequence of steps. The report included diagrammed figures illustrating key concepts.

See also: diagram, diagramming, schematic.