trippel- bedeutet auf Englisch

triple▼(made up of three related elements)
adjective
[UK: ˈtrɪp.l̩] [US: ˈtrɪp.l̩]

triple point [triple points]▼(the temperature and pressure at which a substance is in equilibrium)
noun
[UK: ˈtrɪp.l̩ pɔɪnt] [US: ˈtrɪp.l̩ ˈpɔɪnt]