D defs.my
Entry 4 senses Webster, 1913

Deduction

/dĭd-ŭk'-shən/ · De·duc·tion · IPA /dɪˈdʌkʃən/
01 n. Act or process of deducing or inferring.
  1. 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. 2.
    Act of deducting or taking away; subtraction; as, the deduction of the subtrahend from the minuend.
  3. 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. 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.