"detention basins" in German detention basins Rückhaltebecken Retentionsbecken Detailed translations for "detention basins" detention basins detention basins(also: holding reservoirs, retention reservoirs, retention lagoons, retention basins) Rückhaltebecken{masculine plural} detention basins(also: holding reservoirs, retention reservoirs, retention lagoons, retention basins) Retentionsbecken{masculine plural}