a device for drawing, used in reproducing outlines, plans, etc., mechanically on any desired scale.
a combined protractor and scale.
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How to use diagraph in a sentence
In the orthography of the Félibres the diagraph ue is used as we find it in Old French to represent this vowel.Frdric Mistral | Charles Alfred Downer
British Dictionary definitions for diagraph
a device for enlarging or reducing maps, plans, etc
a protractor and scale used in drawing
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012