| 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) |
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| 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) |
| water mite | <zoology> Any of numerous species of aquatic mites belonging to Hydrachna and allied genera of the family Hydrachnidae, usually having the legs fringed and adapted for swimming. They are often red or red and black in colour, and while young are parasites of fresh water insects and mussels. Synonym: water tick, and water spider. Source: Websters Dictionary (01 Mar 1998) |
| water moccasin | <zoology> A venomous North American snake (Ancistrodon piscivorus) allied to the rattlesnake but destitute of a rattle. It lives in or about pools and ponds, and feeds largely of fishes. Synonym: water snake, water adder, water viper. Source: Websters Dictionary (01 Mar 1998) |
| water mole | <zoology> The shrew mole. See Shrew. The duck mole. See Duck. Source: Websters Dictionary (01 Mar 1998) |
| water monitor | <zoology> A very large lizard (Varanaus salvator) native of India. It frequents the borders of streams and swims actively. It becomes five or six feet long. Called also two-banded monitor, and kabaragoya. The name is also applied to other aquatic monitors. Source: Websters Dictionary (01 Mar 1998) |
| water mould | <microbiology> A common term for a fungus in the division Oomycota. (09 Oct 1997) |
| water mouse | <zoology> Any one of several species of mice belonging to the genus Hydromys, native of Australia and Tasmania. Their hind legs are strong and their toes partially webbed. They live on the borders of streams, and swim well. They are remarkable as being the only rodents found in Australia. Source: Websters Dictionary (01 Mar 1998) |