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Water

Definition

noun

1. (chemistry) a chemical substance, with chemical formula H2O, that is clear, colorless, oderless, and tasteless liquid that may also occur in various forms such as gas (water vapour) and solid (ice).

Water is regarded as the universal solvent primarily due to its chemical and physical properties. It is one of the substances essential to life. Biomolecules (DNA, proteins, polysaccharides, etc.) are dissolved in water. It is also one of the requirements for photosynthesis. Some of its properties are described as follows:

2. (chemistry) an aqueous solution of a substance, for example ammonia water, waste water

3. a body of water, like sea, rivers and lakes, and a naturally-occurring water like mineral water

4. amniotic fluid, as in the pregnant woman’s water breaks


verb

1. to pour water; to make wet

2. to provide with water; to irrigate

3. to dilute

3. to discharge fluid; (colloquial) to urinate

4. to fill the eyes with tears

5. to salivate in anticipation of food


Word origin: From Old English wæter, from Proto-Germanic *wat-, from heteroclitic r/n-stem Proto-Indo-European *wódr̥ (genitive *wednós (“‘of water’”)). Cognates include German Wasser, Dutch water, Irish uisce, Russian вода (voda), Latin unda and Lithuanain vanduo.


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Deproteinizing plasma?

... for the deproteinization of small volumes of mouse plasma for measurement of plasma radiolabeled glucose: 1) Add 10 uL of plasma into 20 uL of dd water. 2) Add 25 uL of BaOH (0.3N from Sigma B4059) and then add 25 uL of ZnSO4 (0.3N from Sigma Z2876). 3) Vortex and spin at 12,000 rpm for 10 minutes. ...

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Forum: Physiology
Topic: Deproteinizing plasma?
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Aquatic life in the polar regions

During winter in polar regions there is a thick sheet of ice above the water bodies. How the water below ice get oxygenated to sustain aquatic life.

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by josem
Sun Aug 24, 2014 8:29 pm
 
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Topic: Aquatic life in the polar regions
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Recommendations for Bacteria Detection?

I think you can use a hemocytometer to count the total bacteria present in the water. But it is difficult to count the motile bacteria hemocytometer. I suggest to use a disinfectant to kill the bacteria before counting.

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by josem
Fri Aug 01, 2014 7:30 pm
 
Forum: Microbiology
Topic: Recommendations for Bacteria Detection?
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Recommendations for Bacteria Detection?

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by lodestone25
Sun Jul 27, 2014 6:20 pm
 
Forum: Microbiology
Topic: Recommendations for Bacteria Detection?
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Trying to prove height increase...need help

... growth, or gene signaling from the articular cartilage/synovial joint. When the articular cartilage is loaded it results in the release of water upon deformation and perhaps cartilagenous signals trigger processes in the epiphysis.

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by MiniGolfer
Thu Jul 24, 2014 9:09 pm
 
Forum: General Discussion
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