a sketch, outline, or plan demonstrating the form or workings of something a pictorial representation of a quantity or of a relationship
to show in or as if in a diagram
WordReference Random House Learner's Dictionary of American English © 2025
di•a•gram /ˈdaɪəˌgræm/USA pronunciation
n., v., -gramed or -grammed, -gram•ing or -gram•ming.
n. [countable]
v. [~ + object]
WordReference Random House Unabridged Dictionary of American English © 2025n. [countable]
- a drawing that outlines and explains the parts or operation of something:a diagram of an engine.
- a chart or plan:The first diagram is a pie chart showing spending.
v. [~ + object]
- to represent by a diagram;
make a diagram of.
di•a•gram
(dī′ə gram′),USA pronunciation n., v., -gramed or -grammed, -gram•ing or -gram•ming.
n.
v.t.
di′a•gram′ma•ble, adj.
n.
- Mathematicsa 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.
v.t.
- to represent by a diagram;
make a diagram of.
- Greek: that which is marked out by lines. See dia-, -gram1
- Latin diagramma
- 1610–20
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