Dictionary » W » Water




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


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.

Please contribute to this project, if you have more information about this term feel free to edit this page

Results from our forum

Best respiratory medium for oxygen?

If air is considered to be better as a respiratory medium than water because (among other reasons) it diffuses better in it (i.e. The air) why is a respiratory surface considered better if it is moist rather than dry (i.e. Covered in an appropriate thin ...

See entire post
by Titanium27
Sun Mar 15, 2015 8:55 am
Forum: Human Biology
Topic: Best respiratory medium for oxygen?
Replies: 0
Views: 111

Methylene Blue Solution use in staining variety of bacteria?

... staining and de-staining experiment. Reagents 0.1M Sodium Acetate Buffer, pH4.2: Sodium acetate, trihydrate (MW 136.1) ------ 1.36 g Distilled water ----------------------------------- 100 ml Mix to dissolve and adjust pH to 4.2 using concentrated glacial acetic acid Methyl Green Solution (0.5%) ...

See entire post
by scytek
Sun Feb 22, 2015 9:22 am
Forum: General Discussion
Topic: Methylene Blue Solution use in staining variety of bacteria?
Replies: 0
Views: 309

Re: Hair problem

... 2. Hormonal imbalance 3. Excessive seteroids intake 4. Alcohols 5. Smoking 6. Suffer from Chronic dieases such as Diabeties, Thyroid and Cancer 7. Water deficiency 8. Use wrong or harsh Hair products such as oil, gel and shampoo etc 9. Drink Sewage water 10. Stress or depression 11. Pollution 12. ...

See entire post
by smarty142
Thu Jan 22, 2015 6:21 am
Forum: Human Biology
Topic: Hair problem
Replies: 7
Views: 2901


... a fake pic. In the pic other trees appear without any shadows as if they are on the ground but the weird thing seen has a shadow as if it was in water..How come..? Agree with you. This seems a real topic..

See entire post
by smarty142
Wed Jan 21, 2015 8:08 am
Forum: General Discussion
Topic: Can anyone help me identify this?
Replies: 7
Views: 1301

Re: What happens to water during photosynthesis?

What the results are to help drinking water during photosynthesis? Wherever in the chloroplast will this kind of happen? The complete chemical substance solution involving photosynthesis is usually this kind of : 6CO2 + 12H2O -> C6H12O6 + ...

See entire post
by FrankGarza
Fri Jan 02, 2015 7:33 am
Forum: Botany Discussion
Topic: What happens to water during photosynthesis?
Replies: 6
Views: 55873
View all matching forum results

This page was last modified 01:12, 15 June 2008. This page has been accessed 62,064 times. 
What links here | Related changes | Permanent link