The Wayback Machine - https://web.archive.org/web/20210417080457/https://www.dictionary.com/browse/qed
Dictionary.com

QED

Save This Word!

abbreviation Physics.

QUIZZES

THINK YOU’VE GOT A HANDLE ON THIS US STATE NICKNAME QUIZ?

Did you ever collect all those state quarters? Put them to good use on this quiz about curious state monikers and the facts around them.
Question 1 of 8
Mississippi’s nickname comes from the magnificent trees that grow there. What is it?

Words nearby QED

Definition for QED (2 of 2)

Q.E.D.

abbreviation

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

Example sentences from the Web for QED

  • QED” was not intelligible to him, but it sounded very well indeed, he thought.

British Dictionary definitions for QED

QED

abbreviation for

quod erat demonstrandum
quantum electrodynamics

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
Tired of Typos? Get Help Now!