| Terms for subject Environment (23726 entries) |
| water-deficiency area | zona arida | |
| Water-like retardants | Ritardanti più fluidi | |
| water-purifying plant | impianto di depurazione dell'acqua | |
| water-repellent | idrorepellente | |
| water-shortage area | zona arida | |
| water-spout | tromba marina | |
| water-supply system | rete di approvvigionamento idrico | |
| water-table | superficie freatica | |
| waterborne waste load | carico di materiali di rifiuto in sospensione nell'acqua | |
| watercourse (A natural stream arising in a given drainage basin but not wholly dependent for its flow on surface drainage in its immediate area, flowing in a channel with a well-defined bed between visible banks or through a definite depression in the land, having a definite and permanent or periodic supply of water, and usually, but not necessarily, having a perceptible current in a particular direction and discharging at a fixed point into another body of water) | corso d'acqua | |
| waterfall | cascata | |
| waterfall (A perpendicular or steep descent of the water of a stream, as where it crosses an outcrop of resistant rock overhanging softer rock that has been eroded or flows over the edge of a plateau of cliffed coast) | cascata | |
| waterfowl (Aquatic birds which constitute the order Anseriformes, including the swans, ducks, geese, and screamers) | avifauna acquatica | |
| waterfowl | uccello d'acqua | |
| waterfowl | anseriformi | |
| waterfowl | avifauna acquatica | |
| waterfowl | selvaggina acquatica | |
| waterfowl | uccello acquatico | |
| waterlogged land | terreno saturo d'acqua | |
| Waternet | rete per il controllo delle risorse idriche europee |