The amount of water vapour, in a column of air, that is equivalent to the depth of the liquid water that would be obtained if it fell as rain

Alternative form of mouthwatering

plural of water bug

Any member of the infraorder Nepomorpha, the true water bugs / Any of various other true bugs that live around water. / The American cockroach, Periplaneta americana.

plural of water-blob

(UK regional) The marsh marigold, Caltha palustris; also used for other similar plants.

Having an odour, vapours or smoke which causes irritation to the eyes. / (figuratively) Having an extremely bad odour. / (figuratively) So expensive that (figuratively) it would make one's eyes water.

(environmental sciences, hydrology) A notional column of water from the surface to the bottom in a natural setting, notable for the differences in physical and chemical properties at various depths.

Alternative spelling of waterborne

Alternative spelling of water bath