5. (Logic)

Defn: The bringing of a syllogism in one of the so-called imperfect modes into a mode in the first figure.

6. (Chem. & Metal.)

Defn: The act, process, or result of reducing; as, the reduction of iron from its ores; the reduction of aldehyde from alcohol.

7. (Med.)

Defn: The operation of restoring a dislocated or fractured part to its former place. Reduction ascending (Arith.), the operation of changing numbers of a lower into others of a higher denomination, as cents to dollars. — Reduction descending (Arith.), the operation of changing numbers of a higher into others of a lower denomination, as dollars to cents.

Syn. — Diminution; decrease; abatement; curtailment; subjugation; conquest; subjection.

REDUCTIVE
Re*duc"tive (-tv), a. Etym: [Cf. F. réductif.]

Defn: Tending to reduce; having the power or effect of reducing.
— n.

Defn: A reductive agent. Sir M. Hale.