| water-white | <botany> A vinelike plant (Vitis Caribaea) growing in parched districts in the West Indies, and containing a great amount of sap which is sometimes used for quenching thirst. Source: Websters Dictionary (01 Mar 1998) |
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| water willow | <botany> An American aquatic plant (Dianthera Americana) with long willowlike leaves, and spikes of small purplish flowers. Source: Websters Dictionary (01 Mar 1998) |
| water witch | <zoology> The dabchick. The stormy petrel. Source: Websters Dictionary (01 Mar 1998) |
| white-water | <veterinary> A dangerous disease of sheep. Source: Websters Dictionary (01 Mar 1998) |
| potable water | A water fit for drinking, being free from contamination and not containing a sufficient quantity of saline material to be regarded as a mineral water. (05 Mar 2000) |
| hard water | <chemistry> Hard water is water which contains minerals like calcium carbonate, magnesium carbonate, bicarbonates, sulphates, or chlorides, because it has been exposed to rocks or rocky soils. Hard water can corrode, discolour, or deposit its minerals, in and around materials such as water pipes. (09 Oct 1997) |
| heavy water | most commonly used by cell biologists to stabilise microtubules. (18 Nov 1997) |
| saline water | A water that contains neutral salts (chlorides, bromides, iodides, sulfates) in appreciable amounts. (05 Mar 2000) |
| salt water boils | Furuncles on hands and forearms of fishermen. (05 Mar 2000) |
| salt water marsh | Wetland dominated by herbaceous plants under the influence of saline waters. May be coastal (tidal) or perched. (09 Oct 1997) |
| salt water soap | A soap made of palm or coconut oil for use with sea water in which it is soluble. Synonym: salt water soap. (05 Mar 2000) |
| selters water | A mineral water from Sellers, in the district of Nassan, Germany, containing much free carbonic acid. Source: Websters Dictionary (01 Mar 1998) |
| purified water | Water obtained by distillation or deionization. (05 Mar 2000) |
| soft water | Water lacking those ions, such as Magnesium and Calcium, that form insoluble salts with fatty acids, so that ordinary soap will lather easily in it. (05 Mar 2000) |
| strong-water | 1. An acid. 2. Distilled or ardent spirits; intoxicating liquor. Source: Websters Dictionary (01 Mar 1998) |