1. (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 to powder; the reduction of things to order; the reduction of the expenses of government; the reduction of a rebellious province.

2. (n.) The act or process of reducing. See Reduce.

3. (n.) The correction of observations for known errors of instruments, etc.

4. (n.) The preparation of the facts and measurements of observations in order to deduce a general result.

5. (n.) The process of making a copy of something, as a figure, design, or draught, on a smaller scale, preserving the proper proportions.

6. (n.) The bringing of a syllogism in one of the so-called imperfect modes into a mode in the first figure.

7. (n.) The act, process, or result of reducing; as, the reduction of iron from its ores; the reduction of aldehyde from alcohol.

8. (n.) The operation of restoring a dislocated or fractured part to its former place.

abasement abatement abbreviation about-face abridgment abstract acetification acidification acidulation addition agio alchemy alkalization allayment alleviation allowance analgesia anesthesia anesthetizing apocope appeasement approximation assimilation assuagement assumption astriction astringency attenuation attrition bank discount becoming blunting bottleneck break breakage breaking bump bust calming carbonation cash discount casting down catalysis cervix chain discount change change-over charge-off cheapening chemicalization circumscription coarctation compactedness compaction compression compressure concavity concentration concession condensation conquering consolidation conspectus constriction constringency contraction contracture conversion crushing curtailment cut cutting dampening damping de-escalation deadening debasement debilitation decline decrease decrement decrescence deduction deflation degradation degrading demotion demulsion depletion depluming depreciation depression derogation descent detraction detrusion devaluation devitalization differentiation dilution diminishment diminuendo diminution dip discount disgrading disparagement displuming dive division domestication downgrading drawback ducking dulcification dulling dying dying off ease easement easing effemination electrolysis elision ellipsis enervation enfeeblement epitome equation evisceration evolution exhaustion extenuation extraction extrapolation fade-out falling-off fatigue ferment fermentation flip-flop foreshortening growth hauling down hollowness hourglass hourglass figure humbling humiliation hushing hydrogenation impairment inanition integration interpolation inversion involution isomerism isthmus kickback knitting languishment lapse leniency lessening letdown letup lightening loosening lowering lulling markdown metamerism metamerization miniaturization mitigation modulation mollification multiplication narrow place narrowing naturalization neck nitration nose dive notation numbing oxidation oxidization pacification palliation passage penalty penalty clause percentage phosphatization plummet plummeting plunge polymerism polymerization position isomerism practice precis premium price cut price fall price reduction price-cut progress proportion puckering pursing quelling quietening quieting re-formation rebate rebatement recap recapitulation reconversion refund relaxation relief remedy remission resolution retraction retrenchment reversal rollback sag sagging salvage salving saturization scaling down setoff shift shortening shrinkage simplicity sinking slackening slash slump softening solidification soothing stranglement strangulation striction stricture