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English definition of “diagram”

diagram

noun [C]     /ˈdaɪ.ə.ɡræm/
B1 a simple plan that represents a machine , system , or idea , etc., often drawn to explain how it works : The teacher drew a diagram showing how the blood flows through the heart .Tables, graphs and diagrams diagrammatic     /ˌdaɪ.ə.ɡrəˈmæt.ɪk/ US  /-ˈmæt̬-/ adjective Tables, graphs and diagrams diagrammatically     /ˌdaɪ.ə.ɡrəˈmæt.ɪ.kəl.i/ US  /-ˈmæt̬-/ adverb using diagrams: She explained the whole problem diagrammatically.Tables, graphs and diagrams
(Definition of diagram noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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