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3 definitions found
 for deduction
From The Collaborative International Dictionary of English v.0.48 :

  Deduction \De*duc"tion\, n. [L. deductio: cf. F. d['e]duction.]
     1. Act or process of deducing or inferring.
        [1913 Webster]
              The deduction of one language from another.
        [1913 Webster]
              This process, by which from two statements we deduce
              a third, is called deduction.         --J. R. Seely.
        [1913 Webster]
     2. Act of deducting or taking away; subtraction; as, the
        deduction of the subtrahend from the minuend.
        [1913 Webster]
     3. That which is deduced or drawn from premises by a process
        of reasoning; an inference; a conclusion.
        [1913 Webster]
              Make fair deductions; see to what they mount.
        [1913 Webster]
     4. That which is or may be deducted; the part taken away;
        abatement; as, a deduction from the yearly rent in
        compensation for services; deductions from income in
        calculating income taxes.
     Syn: See Induction.
          [1913 Webster]

From WordNet (r) 3.0 (2006) :

      n 1: a reduction in the gross amount on which a tax is
           calculated; reduces taxes by the percentage fixed for the
           taxpayer's income bracket [syn: tax write-off, tax
           deduction, deduction]
      2: an amount or percentage deducted [syn: deduction,
      3: something that is inferred (deduced or entailed or implied);
         "his resignation had political implications" [syn:
         deduction, entailment, implication]
      4: reasoning from the general to the particular (or from cause
         to effect) [syn: deduction, deductive reasoning,
      5: the act of subtracting (removing a part from the whole); "he
         complained about the subtraction of money from their
         paychecks" [syn: subtraction, deduction] [ant:
      6: the act of reducing the selling price of merchandise [syn:
         discount, price reduction, deduction]

From Moby Thesaurus II by Grady Ward, 1.0 :

  175 Moby Thesaurus words for "deduction":
     Baconian method, a fortiori reasoning, a posteriori reasoning,
     a priori reasoning, abatement, ablation, abrasion, abridgment,
     abstraction, accord, addition, adjunct, affairs, affiliation,
     affinity, agio, alleviation, alliance, allowance, analysis,
     approximation, assemblage, association, attenuation, bank discount,
     bond, breakage, cash discount, chain discount, charge-off,
     closeness, cogitation, combination, concession, conclusion,
     connectedness, connection, consequence, consequent, consideration,
     contemplation, contiguity, contraction, contrariety, corollary,
     credit, cut, dampening, damping, dealings, decrease, decrement,
     decrescence, deductive reasoning, deflation, deliberation,
     demonstration, depreciation, depression, derivation, diminishment,
     diminution, discount, discourse, discourse of reason,
     discursive reason, disjunction, dockage, drawback, dying,
     dying off, epagoge, erosion, extenuation, fade-out, filiation,
     finding, generalization, homology, hypothesis and verification,
     illation, induction, inductive reasoning, inference, intercourse,
     intimacy, judgment, junction, kickback, languishment, lessening,
     letup, liaison, link, linkage, linking, logical thought, lowering,
     meditation, miniaturization, minus, mitigation, musing,
     mutual attraction, nearness, particularization, penalty,
     penalty clause, percentage, philosophical induction, philosophy,
     pondering, premium, price reduction, price-cut, proof, propinquity,
     proximity, purification, rapport, ratiocination, rationalism,
     rationality, rationalization, rationalizing, reason,
     reasonableness, reasoning, rebate, rebatement, reduction,
     refinement, reflection, refund, relatedness, relation, relations,
     relationship, relaxation, removal, result, rollback, rumination,
     sagging, salvage, scaling down, sequitur, setoff, similarity,
     simplicity, sophistry, specious reasoning, speculation, subduction,
     sublation, subtraction, sweet reason, syllogism,
     syllogistic reasoning, sympathy, synthesis, takeoff, taking away,
     tare, thinking, tie, tie-in, time discount, trade discount, tret,
     underselling, union, weakening, withdrawal, write-off

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