| water ouzel | <ornithology> Any one of several species of small insessorial birds of the genus Cinclus (or Hydrobates), especially the European water ousel (C. Aquaticus), and the American water ousel (C. Mexicanus). These birds live about the water, and are in the habit of walking on the bottom of streams beneath the water in search of food. Source: Websters Dictionary (01 Mar 1998) |
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| water parsnip | <botany> Any plant of the aquatic umbelliferous genus Sium, poisonous herbs with pinnate or dissected leaves and small white flowers. Source: Websters Dictionary (01 Mar 1998) |
| water partridge | <zoology> The ruddy duck. Source: Websters Dictionary (01 Mar 1998) |
| water pennywort | <botany> Marsh pennywort. See Marsh. Source: Websters Dictionary (01 Mar 1998) |
| water pepper | <botany> Smartweed. Synonym: waterwort. Source: Websters Dictionary (01 Mar 1998) |
| water pheasant | <zoology> The pintail. See Pintail. The goosander. The hooded merganser. Source: Websters Dictionary (01 Mar 1998) |
| water piet | <zoology> The water ousel. Source: Websters Dictionary (01 Mar 1998) |
| water pig | 1. <zoology> The capybara. 2. <zoology> The gourami. Source: Websters Dictionary (01 Mar 1998) |
| water pimpernel | <botany> A small white-flowered shrub; brookweed. Source: Websters Dictionary (01 Mar 1998) |
| water pitcher | 1. A pitcher for water. 2. <botany> One of a family of plants having pitcher-shaped leaves. The sidesaddle flower (Sarracenia purpurea) is the type. Source: Websters Dictionary (01 Mar 1998) |
| water plant | A plant that grows in water; an aquatic plant. Source: Websters Dictionary (01 Mar 1998) |
| water plantain | <botany> A kind of plant with acrid leaves. See Plantain. Source: Websters Dictionary (01 Mar 1998) |
| water poa | <botany> Meadow reed grass. See Reed. Source: Websters Dictionary (01 Mar 1998) |
| water pollutants | Substances which pollute the water or bodies of water. Use for water pollutants in general or for which there is no specific heading. (12 Dec 1998) |
| water pollutants, chemical | Chemical compounds which pollute the water of rivers, streams, lakes, the sea, reservoirs, or other bodies of water. (12 Dec 1998) |