A deduction is defined as when something, especially money, is taken away.(noun)
An example of a deduction is what is taken out of your payroll check for income taxes.
The definition of a deduction is the act of understanding something based on evidence.(noun)
An example of a deduction is what a detective makes after he compares and interprets the details of an investigation.
See deduction in Webster's New World College Dictionary
Origin: ME deduccioun < L deductio
See deduction in American Heritage Dictionary 4
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