Meaning of DEDUCTION in English


/di duk"sheuhn/ , n.

1. the act or process of deducting; subtraction.

2. something that is or may be deducted: She took deductions for a home office and other business expenses from her taxes.

3. the act or process of deducing.

4. something that is deduced: His astute deduction was worthy of Sherlock Holmes.

5. Logic.

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

b. a conclusion reached by this process. Cf. induction (def. 4).

[ 1400-50; late ME deduccioun ( deduction- (s. of deductio ) a leading away. See DEDUCT, -ION ]

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .