"hippopotami" in German hippopotami Flusspferde Detailed translations for "hippopotami" hippopotami hippopotami(also: river horses) Flusspferde{masculine plural} Did you know that hippopotami are the closest relative to the whale? Source: opensubtitles.org Corpus by OPUS Request review Wusstet ihr, dass Flusspferde die nächsten Verwandten der Wale sind?