follow Dictionary.com

Your favorite word could be our Word of the Day!

quod erat demonstrandum

[kwawd e-raht dey-mawn-strahn-doo m; English kwod er-uh t dem-uh n-stran-duh m] /kwɔd ˈɛ rɑt ˌdeɪ mɔnˈstrɑn dʊm; English kwɒd ˈɛr ət ˌdɛm ənˈstræn dəm/
Latin.
1.
which was to be shown or demonstrated.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for quod erat demonstrandum

quod erat demonstrandum

/ˈkwɒd ˈɛræt ˌdɛmənˈstrændʊm/
uknown
1.
(at the conclusion of a proof, esp of a theorem in Euclidean geometry) which was to be proved QED
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
Cite This Source
quod erat demonstrandum in Culture
quod erat demonstrandum (Q.E.D.) [(kwawd er-aht dem-uhn-stran-duhm)]

A phrase used to signal that a proof has just been completed. From Latin, meaning “that which was to be demonstrated.”

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for quod erat demonstrandum

Few English speakers likely know this word

Word Value for quod

14
15
Scrabble Words With Friends

Nearby words for quod erat demonstrandum