Results for water

Definitions of water:

part of speech: noun

The fluid which forms the ocean, lakes, and rivers: any collection of it, as the ocean, a lake, river, etc.: urine: lustre of a diamond. Water, when pure, is transparent, inodorous, tasteless; a powerful refractor of light, an imperfect conductor of heat and electricity; it is very slightly compressible, its absolute diminution for a pressure of one atmosphere being only about 51. 3 millionths of its bulk. Although water is colorless in small quantities, it is blue like the atmosphere when viewed in mass. It assumes the solid form, that of ice or snow, at 32⁰ F., and all lower temperatures; and it takes the form of vapor or steam at 212⁰ F. under a pressure of 29. 9 ins. of mercury, and retains that form at all higher temperatures. Under ordinary conditions water possesses the liquid form only at temperatures lying between 32º and 212º. It is, however, possible to cool water very considerably below 32º F. and yet maintain it in the liquid form; the vessel containing the water must be perfectly clean, and the water must be maintained in a state of perfect rest. Water may also be heated, under pressure, many degrees above 212º F. without passing into the state of steam. The specific gravity of water is 1 at 39º. 2 F., being the unit to which the specific gravities of all solids and liquids are referred, as a convenient standard, on account of the facility with which it is obtained in a pure state; one cubic inch of water at 62º F., and 29. 9 inches, barometrical pressure, weighs 252. 458 grains. Distilled water is 815 times heavier than atmospheric air. Water is at its greatest density at 39º. 2 F. (= 4º C.), and in this respect it presents a singular exception to the general law of expansion by heat. If water at 39º. 2 F. be cooled, it expands as it cools till reduced to 32º, when it solidifies; and if water at 39º. 2 F. be heated, it expands as the temperature increases in accordance with the general law. In a chemical point of view water exhibits in itself neither acid nor basic properties; but it combines with both acids and bases forming hydrates; it also combines with neutral salts. Water also enters, as a liquid, into a peculiar kind of combination with the greater number of all known substances. Of all liquids water is the most powerful and general solvent, and on this important property its use depends. Without water not only the operations of the chemist but the processes of animal and vegetable life would come to a stand. In consequence of the great solvent power of water it is never found pure in nature. Even in rain- water, which is the purest, there are always traces of carbonic acid, ammonia, and sea- salt. Where the rain water has filtered through rocks and soils, and reappears as spring or river- water, it is always more or less charged with salts derived from the earth, such as sea- salt, gypsum and chalk. When the proportion of these is small the water is called soft, when larger it is called hard water. The former dissolves soap better, and is therefore preferred for washing; the latter is often pleasanter to drink. The only way to obtain perfectly pure water is to distil it. Distilled water is preserved in clean well stopped bottles, and used in chemical operations. Water is reposited in the earth in inexhaustible quantities, where it is preserved fresh and cool, and from which it issues in springs, which form streams and rivers. But the great reservoirs of water on the globe are the ocean, seas, and lakes, which cover more than three- fifths of its surface, and from which it is raised by evaporation, and, uniting with the air in the state of vapor, is wafted over the earth ready to be precipitated in the form of rain, snow, or hail. Water is a compound substance, consisting of hydrogen and oxygen, in the proportion of 2 volumes of the former gas to 1 volume of the latter; or by weight it is composed of 2 parts of hydrogen united with 16 parts of oxygen.

part of speech: verb

To wet or overflow with water; to irrigate; to supply with water for drink; to diversify with wave- like lines, as silk; to shed liquid matter; to take in water.

part of speech: verb transitive

To wet, overflow, or supply with water: to wet and press so as to give a wavy appearance to.

part of speech: verb intransitive

To shed water: to take in water.

part of speech: noun

A colorless fluid composed of two parts hydrogen and one part oxygen ( H 2O); hence, rain; a see river, lake, etc.; the luster or brilliancy of a precious stone; as, a diamond of the first water; a kind of wavy, shiny pattern, as in silk.

part of speech: noun

The fluid which descends from the clouds in rain; the liquid which, when pure, is transparent, colourless, and destitute of taste or smell, and which is essential to the support of vegetable and animal life; a body of water standing or flowing; any liquid secretion resembling water; urine; the colour or lustre of a diamond.

part of speech: verb transitive

To moisten or sprinkle with water; as, to water plants; to allow or cause to drink; as, to water cattle; to lessen the quality or strength of by duluting; as, to water milk.

part of speech: verb intransitive

To obtain, or take in, water; to fill with water or liquid matter.

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