DEDUCTION
subtraction, deduction
(noun) the act of subtracting (removing a part from the whole); “he complained about the subtraction of money from their paychecks”
discount, price reduction, deduction
(noun) the act of reducing the selling price of merchandise
deduction, deductive reasoning, synthesis
(noun) reasoning from the general to the particular (or from cause to effect)
deduction, entailment, implication
(noun) something that is inferred (deduced or entailed or implied); “his resignation had political implications”
deduction, discount
(noun) an amount or percentage deducted
Source: WordNet® 3.1
Etymology
Noun
deduction (countable and uncountable, plural deductions)
That which is deducted; that which is subtracted or removed
A sum that can be removed from tax calculations; something that is written off
(logic) 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.
Antonym: induction
A conclusion; that which is deduced, concluded or figured out
The ability or skill to deduce or figure out; the power of reason
Synonyms
• (that which is subtracted or removed): extract, reduction; See also decrement
Source: Wiktionary
De*duc"tion, n. Etym: [L. deductio: cf. F. déduction.]
1. Act or process of deducing or inferring.
The deduction of one language from another. Johnson.
This process, by which from two statements we deduce a third, is
called deduction. J. R. Seely.
2. Act of deducting or taking away; subtraction; as, the deduction of
the subtrahend from the minuend.
3. That which is deduced or drawn from premises by a process of
reasoning; an inference; a conclusion.
Make fair deductions; see to what they mount. Pope.
4. That which is deducted; the part taken away; abatement; as, a
deduction from the yearly rent.
Syn.
– See Induction.
Source: Webster’s Unabridged Dictionary 1913 Edition