Relating to, resembling, or presented in the form of a diagram; showing the essential features in a simplified way.
From diagram plus the suffix -atic (variant of -ic), likely influenced by Greek and Latin patterns. This term emerged in 19th-century academic writing.
A 'diagrammatic' representation strips away details to show pure structure—like how subway maps distort geography to show connections clearly. This is why scientists love diagrammatic thinking: it reveals relationships that raw data would hide.
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