Examples Word Origin See more synonyms on Thesaurus.com a figure, usually consisting of a line drawing, made to accompany and illustrate a geometrical theorem, mathematical demonstration, etc. a drawing or plan that outlines and explains the parts, operation, etc., of something: a diagram of an engine. a chart, plan, or scheme. verb (used with object), di·a·gramed or di·a·grammed, di·a·gram·ing or di·a·gram·ming. to represent by a diagram; make a diagram of. Origin of diagram 1610–20;
that which is marked out by lines. See
-gram 1 Related forms di·a·gram·ma·ble, adjective mis·di·a·grammed, adjective un·di·a·gramed, adjective un·di·a·grammed, adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for diagramming Historical Examples In diagramming anything Flint could come to be certain that he had been a slow one. The task of diagramming a territory for invasion is one after Henry H. Rogers' own heart. British Dictionary definitions for diagramming a sketch, outline, or plan demonstrating the form or workings of something maths a pictorial representation of a quantity or of a relationship a Venn diagram verb -grams, -gramming or -grammed or US -grams, -graming or -gramed to show in or as if in a diagram Derived Forms diagrammatic ( ˌdaɪəɡrəˈmætɪk), adjective diagrammatically, adverb Word Origin
C17: from Latin
diagramma, from Greek, from diagraphein, from graphein to write
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for diagramming diagram n.
1610s, from French
diagramme, from Latin diagramma, from Greek diagramma "geometric figure, that which is marked out by lines," from diagraphein "mark out by lines, delineate," from dia- "across, out" (see dia-) + graphein "write, mark, draw" (see -graphy). The verb is 1840, from the noun.
Online Etymology Dictionary, © 2010 Douglas Harper