Reduction — Defs

01 n. The act of reducing, or state of being reduced; conversion to a given state or condition; diminution; conquest; as, the reduction of a body…

1.
The act of reducing, or state of being reduced; conversion to a given state or condition; diminution; conquest; as, the reduction of a body to powder; the reduction of things to order; the reduction of the expenses of government; the reduction of a rebellious province.
2.
The act or process of reducing. See Reduce, v. t., 6. and To reduce an equation, To reduce an expression, under Reduce, v. t.(Arith. & Alg.) See: Reduce, Reduce
3.
The correction of observations for known errors of instruments, etc.(Astron.)
4.
The process of making a copy of something, as a figure, design, or draught, on a smaller scale, preserving the proper proportions.
5.
The bringing of a syllogism in one of the so-called imperfect modes into a mode in the first figure.(Logic)
6.
The act, process, or result of reducing{7}; as, the reduction of iron from its ores; the reduction of an aldehyde into an alcohol.(Chem. & Metal.)
7.
The operation of restoring a dislocated or fractured part to its former place.(Med.)

Phrases & compounds

Reduction ascending — the operation of changing numbers of a lower into others of a higher denomination, as cents to dollars.

Reduction descending — the operation of changing numbers of a higher into others of a lower denomination, as dollars to cents.