The definition of a diagram is a graph, chart, drawing or plan that explains something by showing how the parts relate to each other. An example of diagram is a chart showing how all the departments within an organization are related.

What's an example of a diagram?

In science the term is used in both ways. For example, Anderson (1997) stated more generally: "diagrams are pictorial, yet abstract, representations of information, and maps, line graphs, bar charts, engineering blueprints, and architects' sketches are all examples of diagrams, whereas photographs and video are not".

Where is diagram used?

A diagram is usually a two-dimensional display which communicates using visual relationships. It is a simplified and structured visual representation of concepts, ideas, constructions, relations, statistical data, anatomy etc. It may be used for all aspects of human activities to explain or illustrate a topic.