Díagram. n.s. [διάγραμμα.] A delineation of geometrical figures; a mathematical scheme.
Many a fair precept in poetry is like a seeming demonstration in the mathematicks; very specious in the diagram, but failing in the mechanick operation. Dryden.
Why do not these persons make a diagram of these cogitative lines and angles, and demonstrate their properties of perception and appetite, as plainly as we know the other properties of triangles and circles? Bentley's Sermons.