Crossword clues for Eureka! is one 3 lettersAnswerClueCRYEureka! for one.CRYEureka! is oneMOTTOEureka, for one.MOTTOCalifornia's "Eureka," for oneMOTTOEureka is oneEXCLAMATIONEureka!, for one.AHAMOMENTIt might cause one to cry "Eureka!"IDEAOne might elicit a "Eureka!"