diagrams

diagram

[dahy-uh-gram]
noun
1.
a figure, usually consisting of a line drawing, made to accompany and illustrate a geometrical theorem, mathematical demonstration, etc.
2.
a drawing or plan that outlines and explains the parts, operation, etc., of something: a diagram of an engine.
3.
a chart, plan, or scheme.
verb (used with object), diagramed or diagrammed, diagraming or diagramming.
4.
to represent by a diagram; make a diagram of.

Origin:
1610–20; < Latin diagramma < Greek: that which is marked out by lines. See dia-, -gram1

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
 diagram (ˈdaɪəˌɡræm) —n 1. a sketch, outline, or plan demonstrating the form or workings of something 2. maths a pictorial representation of a quantity or of a relationship: a Venn diagram —vb , -grams, -gramming, -grammed, -grams, -graming, -gramed 3. to show in or as if in a diagram [C17: from Latin diagramma, from Greek, from diagraphein, from graphein to write] diagrammatic —adj diagram'matically —adv

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Etymonline
Word Origin & History

diagram
1619, from Fr. diagramme, from L. diagramma, from Gk. diagramma (gen. diagrammatos) "that which is marked out by lines," from diagraphein "mark out by lines, delineate," from dia- "across, out" + graphein "write, mark, draw." The verb is 1840, from the noun.
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences for Diagrams
In such diagrams, different types of valves are represented by certain symbols.
Embellished with maps, diagrams, chronological charts, tables, etc.
How a microwave oven works description with circuit diagrams.
See the external links section below for links to more beef cut charts and
diagrams.
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