| formation |
In geology and related fields, a stratum (plural: strata) is a layer of rock or soil with internally consistent characteristics that distinguishes it from contiguous layers. Each layer is generally one of a number of parallel layers that lie one upon another, laid down by natural forces. They may extend over hundreds of thousands of square kilometers of the Earth's surface. ...
출처: en.wikipedia.org/wiki/Formation_(geology)
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| formation |
An offensive or defensive arrangement of players, aligned in a specific way.
출처: www.geocities.com/jleahy142002/glossary.htm
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| formaldehyde |
A chemical used in manufacturing and chemical industries, and as a preservative by anatomists, embalmers, and pathologists. Being exposed to formaldehyde may increase the risk of developing leukemia and brain cancer.
출처: www.stjude.org/glossary
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| formaldehyde |
Simplest member of aldehyde family, formula CH 2 O. Formaldehyde is very soluble in water; solutions of formaldehyde (formalin) are used in biological labs to preserve samples. Formaldehyde is fairly toxic; health concerns are associated with its emission from foam, cavity insulation, or new plastic materials such as upholstery, carpet, etc. ...
출처: amsglossary.allenpress.com/glossary/browse
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| formic acid |
Simplest of the organic (carboxylic) acids, formula HCOOH, systematic name methanoic acid. Formic acid is found in both the gas and aqueous phases in the atmosphere, and is thought to be formed as a product of formaldehyde oxidation.
출처: amsglossary.allenpress.com/glossary/browse
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