2. To take away, separate, or remove, in numbering, estimating, or calculating; to subtract; — often with from or out of. Deduct what is but vanity, or dress. Pope. Two and a half per cent should be deducted out of the pay of the foreign troops. Bp. Burnet. We deduct from the computation of our years that part of our time which is spent in . . . infancy. Norris.

3. To reduce; to diminish. [Obs.] "Do not deduct it to days." Massinger.

DEDUCTIBLE
De*duct"i*ble, a.

1. Capable of being deducted, taken away, or withdrawn. Not one found honestly deductible From any use that pleased him. Mrs. Browning.

2. Deducible; consequential.

DEDUCTION
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.