water-based; water-powered
Io voglio un letto ad acqua.
I want a waterbed.
Da lì l’acqua scende fin qui, passando per i vecchi mulini ad acqua.
From there, the water flows down to here, passing by the old watermills.
Vanno ad acqua.
They run on water.
— Hollywood, Vermont (2000)
Tamako, hai portato i colori ad acqua, giusto?
Tamako, you brought the watercolors, right?
— Mademoiselle (2016)