| water hyacinth | <botany> Either of several tropical aquatic plants of the genus Eichhornia, related to the pickerel weed. Source: Websters Dictionary (01 Mar 1998) |
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| water intoxication | The condition induced by the undue retention of water with sodium depletion. It is marked by lethargy, nausea, vomiting, and mild mental aberrations, and in severe cases by convulsions and coma. (12 Dec 1998) |
| water itch | Cutaneous larva migrans caused by larvae of hookworms. Synonym: ancylostoma dermatitis, ancylostomiasis cutis, coolie itch, dew itch, ground itch, swamp itch, swimmer's itch, toe itch, water itch, water sore. (05 Mar 2000) |
| water junket | <zoology> The common sandpiper. Source: Websters Dictionary (01 Mar 1998) |
| water laverock | <zoology> The common sandpiper. Source: Websters Dictionary (01 Mar 1998) |
| water lemon | <botany> The edible fruit of two species of passion flower (Passiflora laurifolia, and P. Maliformis); so called in the West Indies. Source: Websters Dictionary (01 Mar 1998) |
| water lettuce | <botany> A plant (Pistia stratiotes) which floats on tropical waters, and forms a rosette of spongy, wedge-shaped leaves. Source: Websters Dictionary (01 Mar 1998) |
| water lily | <botany> A blossom or plant of any species of the genus Nymphaea, distinguished for its large floating leaves and beautiful flowers. See Nymphaea. The name is extended to various plants of other related genera, as Nuphar, Euryale, Nelumbo, and Victoria. See Euryale, Lotus, and Victoria. Source: Websters Dictionary (01 Mar 1998) |
| water lizard | <zoology> Any aquatic lizard of the genus Varanus, as the monitor of the Nile. See Monitor. Source: Websters Dictionary (01 Mar 1998) |
| water locust | <botany> A thorny leguminous tree (Gleditschia monosperma) which grows in the swamps of the Mississippi valley. Source: Websters Dictionary (01 Mar 1998) |
| water loss, insensible | Loss of water by diffusion through the skin and by evaporation from the respiratory tract. It is so called because we do not know that we are actually losing water at the time that it is leaving the body. (guyton, textbook of medical physiology, 8th ed, p274) (12 Dec 1998) |
| water meadow | <agriculture> A meadow, or piece of low, flat land, capable of being kept in a state of fertility by being overflowed with water from some adjoining river or stream. Source: Websters Dictionary (01 Mar 1998) |
| water measurer | <zoology> Any one of numerous species of water; the skater. See Skater. Source: Websters Dictionary (01 Mar 1998) |
| water microbiology | The presence of bacteria, viruses, and fungi in water. This term is not restricted to pathogenic organisms. (12 Dec 1998) |
| water milfoil | <botany> Any plant of the genus Myriophyllum, aquatic herbs with whorled leaves, the submersed ones pinnately parted into capillary divisions. Source: Websters Dictionary (01 Mar 1998) |