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diagnose
diagnosis
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diagonal
diagonal spread
diagram
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diagraph
diakinesis
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diagraph

di·a·graph [ d ə gràf ] (plural di·a·graphs)


noun 
Definition:
 
copier that changes scale: a mechanical instrument used for producing scale copies of diagrams and maps

[Late 19th century. < French diagraphe< Greek diagraphein (see diagram)]
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