[ dahy-uh-graf, -grahf ]
/ ˈdaɪ əˌgræf, -ˌgrɑf /


a device for drawing, used in reproducing outlines, plans, etc., mechanically on any desired scale.
a combined protractor and scale.

Origin of diagraph

1840–50; < French diagraphe < Greek diagráphein to draw. See dia-, -graph
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for diagraph

  • 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


/ (ˈdaɪəˌɡrɑːf, -ˌɡræf) /


a device for enlarging or reducing maps, plans, etc
a protractor and scale used in drawing

Word Origin for diagraph

C19: from French diagraphe, from Greek diagraphein to represent with lines; see diagram
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