cu·ra·rine \k(y)üˈrärə̇n, -äˌrēn\noun (-s) Etymology: International Scientific Vocabulary curare + -ine : any of several alkaloids obtained from curare: as a.: one of three alkaloids from calabash curare — usually used with a preceding C and a following Roman numeral < C-curarine I > < C-curarine III > b.: tubocurarine