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 Script error: No such module "Lang"., meaning "tenth". Since 1960, the prefix is part of the International System of Units (SI).[2][3]
A frequent use of the prefix is in the unit deciliter (dl), common in food recipes; many European homes have a deciliter measure for flour, water, etc. A common measure in engineering is the unit decibel for measuring ratios of power and root-power quantities, such as sound level and electrical amplification.
Example
- The diameter of a compact disc is about 12 centimetres or 1.2 decimetres.[4]
References
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| Prefix | Base 10 | Decimal | Adoption [nb 1] | |
|---|---|---|---|---|
| Name | Symbol | |||
| quetta | Q | 1030 | Script error: No such module "Gaps". | 2022[1] |
| ronna | R | 1027 | Script error: No such module "Gaps". | |
| yotta | Y | 1024 | Script error: No such module "Gaps". | 1991 |
| zetta | Z | 1021 | Script error: No such module "Gaps". | |
| exa | E | 1018 | Script error: No such module "Gaps". | 1975[2] |
| peta | P | 1015 | Script error: No such module "Gaps". | |
| tera | T | 1012 | Script error: No such module "Gaps". | 1960 |
| giga | G | 109 | Script error: No such module "Gaps". | |
| mega | M | 106 | Script error: No such module "Gaps". | 1873 |
| kilo | k | 103 | Script error: No such module "Gaps". | 1795 |
| hecto | h | 102 | 100 | |
| deca | da | 101 | 10 | |
| — | — | 100 | 1 | — |
| deci | d | 10−1 | 0.1 | 1795 |
| centi | c | 10−2 | 0.01 | |
| milli | m | 10−3 | 0.001 | |
| micro | μ | 10−6 | Script error: No such module "Gaps". | 1873 |
| nano | n | 10−9 | Script error: No such module "Gaps". | 1960 |
| pico | p | 10−12 | Script error: No such module "Gaps". | |
| femto | f | 10−15 | Script error: No such module "Gaps". | 1964 |
| atto | a | 10−18 | Script error: No such module "Gaps". | |
| zepto | z | 10−21 | Script error: No such module "Gaps". | 1991 |
| yocto | y | 10−24 | Script error: No such module "Gaps". | |
| ronto | r | 10−27 | Script error: No such module "Gaps". | 2022[1] |
| quecto | q | 10−30 | Script error: No such module "Gaps". | |
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