Deci-
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Deci- (symbol d) is a decimal unit prefix in the metric system denoting a factor of one tenth. Proposed in 1793[1] and adopted in 1795, the prefix comes from the Latin decimus, meaning "tenth". Since 1960, the prefix is part of the International System of Units (SI).[2][3] Its most frequent use, however, is in a non-SI unit, the decibel, used to measure sound intensity (relative to a reference) and many other ratios.
Deciliter or dl is common in recipes. Many European homes have a deciliter measure for flour, water etc.
Example:
- A compact disc is about 12 centimeters or 1.2 decimeters.[4]
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- ↑ Prefixes adopted before 1960 already existed before SI. 1873 was the introduction of the CGS system.
References
- ↑ Commission temporaire de Poids & Mesures rêpublicaines, En exécution des Décrets de la Convention Nationale (1793). Instruction abrégée sur les mesures déduites de la grandeur de la Terre; uniformes pour toute la Rêpublique, et sur les Calculs relatifs à leur division décimale (in French) (Edition originale ed.). Paris, France: De l´imprimerie nationale exécutive du Louvre. Retrieved 2015-10-09.
- ↑ The International System of Units (Si): The Metric System. p. 30.
- ↑ https://www.bipm.org/en/CGPM/db/11/12/
- ↑ http://www.nikon.com/about/feelnikon/universcale/index_f.htm
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