absolute error meaning

• [Electronics]
  The difference indicated by the approximate value of a quantity minus the actual
  value. This difference is positive when the approximate value is higher than the exact value, and it is negative when the approximate value is lower than the exact value. Compare RELATIVE ERROR.
  

• absolute:    Adjective: absolut ...
• error:    Noun: error & ...
• in error:    [American slang]ad ...

Examples

1. we would rather have several small absolute errors than one large one.
2. absolute error of measurement
3. apparent absolute error
4. gives a calculation formula of the absolute error of specific frictional head losses
5. the absolute errors of kdv and mkdv equations show that this method exhibits more remarkable effectiveness