You searched for: “evaporation pond”
evaporation pond (s) (noun), evaporation ponds (pl)
A containment pond designed to hold liquid wastes and to concentrate the waste through a process of decreasing the amount of water: "The evaporation pond reduces the amount of water so the waste material is more visible and easier to dispose of."
This entry is located in the following units: -ation, -ization (-iz[e] + -ation); -isation (British spelling variation) (page 37) vapori-, vapor-, vapo- (page 1)