deduction

Meanings

1. 1
   noun

   That which is deducted; that which is subtracted or removed.

   Near-synonyms: extract, reduction; see also Thesaurus:decrement

2. 2
   noun

   A process of reasoning that moves from the general to the specific, in which a conclusion follows necessarily from the premises presented, so that the conclusion cannot be false if the premises are true.

   He arrived at the deduction that the butler didn't do it.

3. 3
   noun

   the act of subtracting (removing a part from the whole)

4. 4
   noun

   the act of reducing the selling price of merchandise

5. 5
   noun

   reasoning from the general to the particular (or from cause to effect)

6. 6
   noun

   something that is inferred (deduced or entailed or implied)

7. 7
   noun

   an amount or percentage deducted

8. 8
   noun

   a reduction in the gross amount on which a tax is calculated

Etymology

From Middle French déduction, from Latin deductio. Equivalent to deduct + -ion or deduce + -tion.