vivier bedeutet auf Englisch

fishpond [fishponds]▼◼◼◼(freshwater pond stocked with fish)
noun
[UK: ˈfɪʃpɒnd] [US: ˈfɪʃpɒnd]

breeding-ground▼◼◻◻(figuratively)
noun
[UK: ˈbriːd.ɪŋ ɡraʊnd] [US: ˈbriːd.ɪŋ ˈɡraʊnd]

hothouse [hothouses]▼◼◻◻(environment that encourages development)
noun
[UK: ˈhɒt.haʊs] [US: ˈhɑːt.ˌhɑːws]