(initial capital letter) I have found (it): the reputed exclamation of Archimedes when, after long study, he discovered a method of detecting the amount of alloy mixed with the gold in the crown of the king of Syracuse.
(used as an exclamation of triumph at a discovery.)
Other definitions for Eureka (2 of 2)
a city in NW California.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use eureka in a sentence
That part of New York, lower Manhattan, dominated for 300 years, then all of a sudden the whole thing rises up—eureka-like.
Mayor Frank Jager of eureka made that clear when he spoke at a press conference outside the church.As 2014 Began, a Fateful Path to a Catholic Priest’s Murder | Michael Daly | January 3, 2014 | THE DAILY BEAST
A dispatcher relayed instructions from a eureka detective to the arresting deputies.As 2014 Began, a Fateful Path to a Catholic Priest’s Murder | Michael Daly | January 3, 2014 | THE DAILY BEAST
The chef behind hit Beverly Hills pop-up restaurant eureka is Flynn McGarry.Meet Flynn McGarry: America’s Next Great Chef Is 14 Years Old | Jace Lacob | May 23, 2013 | THE DAILY BEAST
Not just one of his films but all of them from Performance through to eureka.Danny Boyle, Director of 'Trance,' On His Favorite Psychological Thrillers | Danny Boyle | April 2, 2013 | THE DAILY BEAST
"We ought to have called him and Dorothy when we were first attacked," added eureka.
"eureka sees better in the dark than we can," whispered Dorothy.
They mounted into the buggy, Dorothy holding eureka safe in her lap.
Dorothy held eureka in her arms and bade her friends a fond good-bye.
You owe the eureka, as your share of the assessment, two dollars and forty cents.The Varmint | Owen Johnson
British Dictionary definitions for eureka
an exclamation of triumph on discovering or solving something
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
Cultural definitions for Eureka!
A Greek word meaning “I have found it!” An exclamation that accompanies a discovery: “When she finally located the rare book, the scholar cried, ‘Eureka!’” (See Archimedes.)
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.