| water microbiology | The presence of bacteria, viruses, and fungi in water. This term is not restricted to pathogenic organisms. (12 Dec 1998) |
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| 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) |
| water newt | <zoology> Any one of numerous species of aquatic salamanders; a triton. Source: Websters Dictionary (01 Mar 1998) |
| water nymph | 1. A goddess of any stream or other body of water, whether one of the Naiads, Nereids, or Oceanides. 2. <botany> A water lily (Nymphaea). Source: Websters Dictionary (01 Mar 1998) |
| water of adhesion | Water held by molecular attraction in contact with solid surfaces, but not forming an essential part of their constitution. (05 Mar 2000) |
| water of combustion | The water formed in the body by oxidation of the hydrogen of the food, the greatest amount being produced in the metabolism of fat (about 117 g/100 g of fat). Synonym: water of combustion. (05 Mar 2000) |
| water of constitution | Water held by a unit of structure as an essential part of its constitution, though not an ingredient of its molecules. See: water of crystallization. (05 Mar 2000) |
| water of crystallization | Water of constitution that unites with certain salts and is essential to their arrangement in crystalline form; e.g., CuSO4-5H2O. (05 Mar 2000) |
| water of metabolism | The water formed in the body by oxidation of the hydrogen of the food, the greatest amount being produced in the metabolism of fat (about 117 g/100 g of fat). Synonym: water of combustion. (05 Mar 2000) |