Water (from the Old English word wæter; c.f German "Wasser", from PIE *wod-or, "water") is a tasteless, odorless, and nearly colorless (it has a slight hint of blue) substance in its pure form that is essential to all known forms of life and is known also as the most universal solvent. Water is an abundant substance on Earth. It exists in many places and forms. It appears mostly in the oceans and polar ice caps, but also as clouds, rain water, rivers, freshwater aquifers, and sea ice. On the planet, water is cont ...

Including:

• Water - Molecular properties
• Water - Forms of water
• Water - Water in biology and human civilization
• Water - Astronomical position of Earth and impact on its water
• Water - Human uses of water
• Water - Water as a precious resource
• Water - Regulating water distribution
• Water - The impact of water on religion and philosophy

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Definition and meaning of water:

water - pure water consists of hydrogen and oxygen, H2O. It is a binary compound that occurs at room temperature as a colorless, odorless, tasteless, transparent liquid which is very slightly compressible. It freezes at 0 degrees C and boils at 100 degrees C. It is the most important natural solvent, and frequently contains impurities, which are mostly removed by distillation

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

Also see these pages: Oceanography, Oceanography Sitemap, Coral Reef, Environment, Sustainability, Climate Change,

For more dictionary entries, see » Water Dictionary

Water:

One of the main “elements” in occultism; associated in the West with emotions, intuition, blue, green, silver, cups, bowls, wisdom, passivity, cleansing, passive psychic arts, cold, dampness, etc.

(See also: Water, Pagan, Paganism, Pagan Dictionary)

A water ionizer is an appliance that ionizes water, producing both alkaline and acidic water. Water ionizers have been used for decades in Japan but the western world has only just discovered the uses of ionized water. In Japan and other Far Eastern countries some water ionizers have been endorsed by their own governmental health & welfare departments and used by their hospitals to treat, Chronic diarrhoea, Indigestion, Gastrointestinal abnormal fermentation, Hyperac ...

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Water content is a ratio used in hydrogeology and soil mechanics to indicate the amount of water a porous medium contains. In fully saturated groundwater aquifers, all the available pore spaces are filled with water (volumetric water content = porosity). Above the capillary fringe, some of the pore spaces have air in them too. When the porous medium in question is soil, water content is synonymous with soil moisture. Water content can either be the volumetric (by volume) or gravimetric (by weight) fraction of the total rock whi ...

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Water resources are sources of water that are useful or potentially useful to humans. It is important because it is needed for life to exist. Many uses of water include agricultural, industrial, household, recreational and environmental activities. Virtually all of these human uses require fresh water. Only 3% of water on the Earth is fresh water, and over two thirds of this is frozen in glaciers and polar ice caps. Water demand already exceeds supply in many parts of the world, and many more areas are expected to experience this imba ...

Including:

• Water resources - Water and conflict
• Water resources - Sources of fresh water
• Water resources - Surface water
• Water resources - Sub-surface water
• Water resources - Desalination
• Water resources - Frozen water
• Water resources - Threats to fresh water
• Water resources - Climate change
• Water resources - Depletion of aquifiers
• Water resources - Pollution and water protection
• Water resources - Uses of fresh water
• Water resources - Agricultural
• Water resources - Industrial
• Water resources - Household
• Water resources - Recreation
• Water resources - Environmental
• Water resources - World water supply and distribution

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Water treatment may mean: sewage treatment for the treatment of sewage or other wastewater water purification for the treatment of drinking water to make it potable or suitable for human consumption Residential water treatment for links and specific residential water treatment methods industrial water treatment for the treatment of water used in industry, often in closed systems water industry for the management of water resources

A water tender is a specialized piece of firefighting apparatus designed for the sole purpose of transporting water from a water source to a fire scene. Water tenders are capable of drafting water from a stream, lake or hydrant. Most water tenders are designed to carry loads of 1000 gallons or more. Some may carry upwards of 4000 gallons. Other related archivesfirefighting, gallons, hydrant, lake, stream, water

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Mineral water is water containing minerals or other dissolved substances that alter its taste or give it therapeutic value. Salts, sulfur compounds, and gases are among the substances that can be dissolved in the water. Mineral water can often be effervescent. Mineral water can be prepared or can occur naturally. Traditionally mineral waters would be used or consumed at their source, often referred to as taking the waters or taking the cure, and such sites were referred to as spas, baths or wells. Spa would ...

Including:

• Mineral water - Iron water

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See Oenanthe for the bird genus of this name. O. aquatica - Fine-leafed water dropwort O. crocata - Hemlock water dropwort O. fistulosa - Tubular water dropwort O. fluviatilis - River water dropwort O. javanica - Java water dropwort O. javanica ssp. javanica - Java water dropwort O. javanica ssp. stolonifera - Stolon water dropwort O. lachenalii - Parsley water dropwort O. laciniata - ...

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The water table is the upper limit of abundant groundwater. In the vadose zone, above the water table, the interstices between particles of earth are filled by air, or by air and water (with the exception of the capillary fringe). Below it, every available space is saturated with water. A large amount of water within a body of sand or rock below the water table is called an aquifer. A so-called "perched aquifer" (or perched water table) occurs when the descent of water percolating fro ...

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Water chestnut may refer to either of two plants (both sometimes used in Chinese cuisine): Chinese water chestnut (Eleocharis dulcis) - eaten for its crispy corm water caltrop (Trapa natans) - eaten for its starchy seed Other related archivesChinese cuisine, Chinese water chestnut, corm, water caltrop

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A water slide is a slide or tube with water flowing down it. The water reduces friction so people on it move quickly. Water slides typically run into a swimming pool at the end. Water slides are popular at water parks, such as the Wet 'n Wild parks located throughout the United States and are great alternatives to those who don't like such intense rides at other amusement parks. In some countries, they are more commonly referred to as water chutes or hydroslides. ...

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A water sprite (or water faery) is a mythical creature that resembles a human female, but is the color of the sea. Water sprites are said to be able to breathe water or air and are mostly harmless unless threatened. See also: Dagon Jengu naiads nix nymph Mami Wata Melusine mermaid merman ...

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A water bomb, or water balloon, is a simple small latex rubber balloon filled with tap water. The user then throws the water filled balloon at a desired target and the balloon pops leaving the target soaked with water. They are commonly used by children in outdoor play-fights, and by others in carrying out practical jokes, see also balloon. There is also a way of folding a sheet of paper to form a roughly spherical container (see Origami) capable of holding water for some time. These are then filled ...

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Water violet is a plant, Hottonia palustris belonging to the family Primulaceae. It grows in shallow water, rooting on the bottom with the stems floating. A native of Europe and Asia. It is not related to the Violets. Other related archivesPrimulaceae

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Water of crystallization is water that is tightly associated with crystalline metal salts, and remains after drying in a fixed proportion to the salt. Water of crystallization can frequently be removed (dehydration of the salt) by heating the salt far above room temperature, for example by heating in a crucible over a bunsen burner. A salt with associated water of crystallization is known as a hydrated salt; salts without water of crystallization are called anhydrous salts. The structure of these hydrates can be quite elaborate ...

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A water supply system provides water to the locations that need it. This term has several contexts: Municipal water supply system for household and commercial use; Firefighting water supplies; Any water stored for later use. Water supply - Municipal water supply systems. Water is vital to everyday life, and throughout history people have devised systems to make getting and using it more convenient. Early Rome had indoor plumbing, meaning a system of aqueducts and pipes ...

Including:

• Water supply - Municipal water supply systems
• Water supply - Examples
• Water supply - Water pressure
• Water supply - Billing and water meters

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Water disputes are some of the world's oldest forms of disputes. It is believed that the system of taxation originally evolved from the idea of river water sharing. The roots of the English words "River" and "Rivalry" are also the same. Some people believe that the availability of water is what finally made the differences in the form of organization or government of a people. Where water was scarce, such as in a desert, it made sense to have small bodies of governance with strict rules for the subjects. Freedom ...

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The Water Communion is a ritual service common in Unitarian Universalist congregations. It is usually held in the fall. In 1980, the first water communion service was held at a UU Women and Religion Convocation in East Lansing, Michigan. Due to the nature of Unitarian Universalism, traditions vary from one congregation to another; however, most Water Communions follow the same general idea. Throughout the year, members of ther congregation collect samples of water from various places they go to, ranging from vacations to ...

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