| 1. | Statistics. any of the statistically independent values of a sample that are used to determine a property of the sample, as the mean or variance. |
| 2. | Physical Chemistry. any of the independent variables required to specify the energy of a molecule or atom. |

| degree of freedom n. pl. degrees of freedom
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degree of freedom
in mathematics, any of the number of independent quantities necessary to express the values of all the variable properties of a system. A system composed of a point moving without constraints in space, for example, has three degrees of freedom because three coordinates are needed to determine the position of the point
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