ejaculator /ɪˈd͡ʒækjəˌleɪtəɹ/ noun2 •A person or thing that ejaculates.Some experts have described the premature ejaculator as a man who cannot control his ejaculation for at least thirty seconds after penetration. Others have suggested one minute. — 1976 •A device that stimulates the sex organs of a male animal with electric impulses in order to extract semen from an animal. formsejaculators