Reduction ascending
(gcide) | Reduction \Re*duc"tion\ (r[-e]*d[u^]k"sh[u^]n), n. [F.
r['e]duction, L. reductio. See Reduce.]
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.
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2. (Arith. & Alg.) The act or process of reducing. See
Reduce, v. t., 6. and To reduce an equation, {To
reduce an expression}, under Reduce, v. t.
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3. (Astron.)
(a) The correction of observations for known errors of
instruments, etc.
(b) The preparation of the facts and measurements of
observations in order to deduce a general result.
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4. The process of making a copy of something, as a figure,
design, or draught, on a smaller scale, preserving the
proper proportions. --Fairholt.
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5. (Logic) The bringing of a syllogism in one of the
so-called imperfect modes into a mode in the first figure.
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6. (Chem. & Metal.) The act, process, or result of
reducing[7]; as, the reduction of iron from its ores; the
reduction of an aldehyde into an alcohol.
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7. (Med.) The operation of restoring a dislocated or
fractured part to its former place.
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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.
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Syn: Diminution; decrease; abatement; curtailment;
subjugation; conquest; subjection.
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