Breadcrumb Home > Thesaurus > E Synonyms of eureka Find synonyms for: Noun 1. constantan, Eureka, copper-base alloy usage: an alloy of copper and nickel with high electrical resistance and a low temperature coefficient; used as resistance wire 2. Eureka usage: a town in northwest California on an arm of the Pacific Ocean WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of eureka (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: pinguid Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language