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Other definitions for QED (2 of 2)
which was to be shown or demonstrated (used especially in mathematical proofs).
Origin of Q.E.D.
First recorded in 1810–20, Q.E.D. is from Latin quod erat dēmōnstrandum
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
How to use QED in a sentence
“QED” was not intelligible to him, but it sounded very well indeed, he thought.For Fortune and Glory|Lewis Hough
British Dictionary definitions for QED
quod erat demonstrandum
Word Origin for QED
(sense 1) Latin: which was to be shown or proved
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