nonadditivities

/ˌnɑnˌædɪˈtɪvətiz/
noun
  1. Plural of nonadditivity; multiple instances or types of the property where the whole is not equal to the sum of its parts.
    • The scientists studied the nonadditivities in the chemical reactions to understand unexpected results.
    • In economics, nonadditivities can occur when combining different resources leads to more or less than expected.
    • The report listed several nonadditivities in the data, showing that the effects were not simply cumulative.
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