reduction 音标拼音: [rəd'ʌkʃən] [rid'ʌkʃən]
n . 缩小,减少,降低;简化,简约;还原,复原
缩小,减少,降低;简化,简约;还原,复原
reduction 缩减 归约
reduction n 1 :
the act of decreasing or reducing something [
synonym :
{
decrease }, {
diminution }, {
reduction }, {
step -
down }] [
ant :
{
increase }, {
step -
up }]
2 :
any process in which electrons are added to an atom or ion (
as by removing oxygen or adding hydrogen );
always occurs accompanied by oxidation of the reducing agent [
synonym :
{
reduction }, {
reducing }]
3 :
the act of reducing complexity [
synonym : {
reduction },
{
simplification }]
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 .
[
1913 Webster ]
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 .
[
1913 Webster ]
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 .
[
1913 Webster ]
4 .
The process of making a copy of something ,
as a figure ,
design ,
or draught ,
on a smaller scale ,
preserving the proper proportions . --
Fairholt .
[
1913 Webster ]
5 . (
Logic )
The bringing of a syllogism in one of the so -
called imperfect modes into a mode in the first figure .
[
1913 Webster ]
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 .
[
1913 Webster ]
7 . (
Med .)
The operation of restoring a dislocated or fractured part to its former place .
[
1913 Webster ]
{
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 .
[
1913 Webster ]
Syn :
Diminution ;
decrease ;
abatement ;
curtailment ;
subjugation ;
conquest ;
subjection .
[
1913 Webster ]
290 Moby Thesaurus words for "
reduction ":
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 ,
stripping of rank ,
subdual ,
subduement ,
submergence ,
subtraction ,
summary ,
summation ,
suppression ,
switch ,
switch -
over ,
syncope ,
synopsis ,
systole ,
taming ,
tare ,
telescoping ,
tempering ,
thinning ,
thrusting under ,
time discount ,
trade discount ,
tranquilization ,
transformation ,
transit ,
transition ,
treading down ,
tret ,
truncation ,
turning into ,
underselling ,
volte -
face ,
wasp waist ,
weakening ,
working ,
wrinkling ,
write -
off
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