Eureka Definition
yo͝o-rēkə
interjection
Used to express triumph upon finding or discovering something.
American Heritage
I have found (it): believed to have been uttered by Archimedes when he discovered a way to determine the purity of gold by applying the principle of specific gravity.
Webster's New World
I've got it; yes; that's it.
Webster's New World
An exclamation indicating sudden discovery.
Wiktionary
pronoun
A city in northern California.
Wiktionary
A city in Illinois.
Wiktionary
A city in Kansas.
Wiktionary
A city in Missouri.
Wiktionary
A town in Montana.
Wiktionary
Origin of Eureka
Greek heurēka I have found (it) (supposedly exclaimed by Archimedes upon discovering how to measure the volume of an irregular solid and thereby determine the purity of a gold object) first person sing. perfect tense of heuriskein to find
From American Heritage Dictionary of the English Language, 5th Edition
From Ancient Greek εὕρηκα (heurēka, “I have found”), perfect active indicative 1st singular of εὑρίσκω (heuriskō, “I find”).
From Wiktionary
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