concentration 音标拼音: [k
, ɑnsəntr'eʃən]
n . 浓缩,集中,专注,专心,全神贯注
浓缩,集中,专注,专心,全神贯注
concentration 集中
concentration n 1 :
the strength of a solution ;
number of molecules of a substance in a given volume 2 :
the spatial property of being crowded together [
synonym :
{
concentration }, {
density }, {
denseness }, {
tightness },
{
compactness }] [
ant : {
dispersion }, {
distribution }]
3 :
strengthening the concentration (
as of a solute in a mixture )
by removing diluting material [
ant : {
dilution }]
4 :
increase in density 5 :
complete attention ;
intense mental effort [
synonym :
{
concentration }, {
engrossment }, {
absorption }, {
immersion }]
6 :
bringing together military forces 7 :
great and constant diligence and attention [
synonym : {
assiduity },
{
assiduousness }, {
concentration }]
Concentration \
Con `
cen *
tra "
tion \,
n . [
Cf .
F .
concentration .]
1 .
The act or process of concentrating ;
the process of becoming concentrated ,
or the state of being concentrated ;
concentration .
[
1913 Webster ]
Concentration of the lunar beams . --
Boyle .
[
1913 Webster ]
Intense concetration of thought . --
Sir J .
Herschel .
[
1913 Webster ]
2 .
The act or process of reducing the volume of a liquid ,
as by evaporation .
[
1913 Webster ]
The acid acquires a higher degree of concentration .
--
Knight .
[
1913 Webster ]
3 . (
Metal .)
The act or process of removing the dress of ore and of reducing the valuable part to smaller compass ,
as by currents of air or water .
[
1913 Webster ]
Dephlegmation \
De `
phleg *
ma "
tion \,
n . [
Cf .
F .
d ['
e ]
flegmation .]
(
Chem .)
The operation of separating water from spirits and acids ,
by evaporation or repeated distillation ; --
called also {
concentration },
especially when acids are the subject of it .
[
Obs .]
[
1913 Webster ]
241 Moby Thesaurus words for "
concentration ":
abbreviation ,
absorbed attention ,
absorption ,
abstraction ,
accelerando ,
acceleration ,
advertence ,
advertency ,
agglutination ,
aggravation ,
alertness ,
application ,
approach ,
ardor ,
assiduity ,
assiduousness ,
astriction ,
astringency ,
asymptote ,
attention ,
attention span ,
attentiveness ,
awareness ,
beefing -
up ,
blowing up ,
blowup ,
bottleneck ,
brown study ,
bulldog tenacity ,
care ,
centering ,
centralism ,
centralization ,
cervix ,
circumscription ,
close study ,
clumping ,
clustering ,
coarctation ,
collision course ,
compactedness ,
compaction ,
compression ,
compressure ,
concentralization ,
concentrate ,
concourse ,
concretion ,
concurrence ,
condensation ,
confluence ,
conflux ,
congress ,
consciousness ,
consideration ,
consolidation ,
constancy ,
constriction ,
constringency ,
contemplation ,
contemplativeness ,
contraction ,
contracture ,
convergence ,
converging ,
crossing ,
curtailment ,
debate ,
decoction ,
decrease ,
deep study ,
deep thought ,
deepening ,
deliberation ,
densification ,
diligence ,
diminuendo ,
distillate ,
distillation ,
dogged perseverance ,
doggedness ,
ear ,
earnestness ,
elixir ,
endurance ,
energeticalness ,
energy ,
engagement ,
engrossment ,
enhancement ,
enthrallment ,
essence ,
exacerbation ,
exaggeration ,
explosion ,
expression ,
extract ,
extraction ,
fervor ,
fidelity ,
firmness ,
firmness of mind ,
fixedness ,
flintiness ,
focalization ,
focus ,
focusing ,
funnel ,
hardening ,
heating -
up ,
heed ,
heedfulness ,
heightening ,
hourglass ,
hourglass figure ,
hub ,
immersion ,
indefatigability ,
industriousness ,
industry ,
inflexibility ,
information explosion ,
infusion ,
insistence ,
insistency ,
intensification ,
intentiveness ,
intentness ,
involvement ,
isthmus ,
knitting ,
laboriousness ,
loyalty ,
magnification ,
meditation ,
meeting ,
melancholy ,
mindfulness ,
monomania ,
musing ,
mutual approach ,
narrow place ,
narrowing ,
narrowing gap ,
neck ,
note ,
notice ,
observance ,
observation ,
obsession ,
obstinacy ,
patience ,
patience of Job ,
pensiveness ,
permanence ,
perseverance ,
persistence ,
persistency ,
pertinaciousness ,
pertinacity ,
pickup ,
plodding ,
plugging ,
pooling ,
population explosion ,
preoccupation ,
pressing ,
profound thought ,
puckering ,
purification ,
pursing ,
quintessence ,
radius ,
rapt attention ,
redoubling ,
reduction ,
refinement ,
reflectiveness ,
regard ,
regardfulness ,
reinforcement ,
relentlessness ,
remark ,
rendering ,
rendition ,
resolution ,
respect ,
reverie ,
rigidity ,
sedulity ,
sedulousness ,
settledness ,
shortening ,
single -
mindedness ,
singleness of purpose ,
slogging ,
soaking ,
solidification ,
speculativeness ,
speedup ,
spirit ,
spokes ,
squeezing ,
stability ,
stamina ,
staunchness ,
staying power ,
steadfastness ,
steadiness ,
steeliness ,
steeping ,
step -
up ,
stick -
to -
itiveness ,
stranglement ,
strangulation ,
strengthening ,
strenuousness ,
striction ,
stricture ,
stubbornness ,
studiousness ,
study ,
submersion ,
systole ,
tangent ,
tenaciousness ,
tenacity ,
thought ,
thoughtfulness ,
tightening ,
tirelessness ,
trueness ,
unremittingness ,
unsparingness ,
unswerving attention ,
unyieldingness ,
vehemence ,
wasp waist ,
wistfulness ,
wrinkling ,
zealousness
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Concentration - Wikipedia In chemistry, concentration is the abundance of a constituent divided by the total volume of a mixture Several types of mathematical description can be distinguished: mass concentration, molar concentration, number concentration, and volume concentration [1]
CONCENTRATION Definition Meaning - Merriam-Webster The meaning of CONCENTRATION is the act or process of concentrating : the state of being concentrated; especially : direction of attention to a single object How to use concentration in a sentence
CONCENTRATION | English meaning - Cambridge Dictionary CONCENTRATION definition: 1 the ability to think carefully about something you are doing and nothing else: 2 a large… Learn more
What Does Concentration Mean in Chemistry? - ThoughtCo What Does Concentration Mean in Chemistry? - ThoughtCo
Concentration Definition Meaning | Britannica Dictionary CONCENTRATION meaning: 1 : the ability to give your attention or thought to a single object or activity the ability to concentrate; 2 : the act of giving your attention to a single object or activity
CONCENTRATION definition and meaning | Collins English Dictionary The concentration of a substance is the amount of another specified substance in a unit amount of that substance We can define the concentration of a solution as the amount of solute present in a quantity of the solvent
concentration, n. meanings, etymology and more - Oxford English Dictionary concentration is one of the 1,000 most common words in modern written English It is similar in frequency to words like distance, duty, reality, useful, and village It typically occurs about 90 times per million words in modern written English
concentration noun - Definition, pictures, pronunciation and usage . . . [uncountable] concentration (on something) the process of people directing effort and attention on a particular thing He stressed the need for greater concentration on environmental issues In his concentration on the job in hand, John allowed his normal vigilance to slip
Concentration - definition of concentration by . . . - The Free Dictionary concentration - the strength of a solution; number of molecules of a substance in a given volume
CONCENTRATION Definition Meaning - Dictionary. com Concentration definition: the act of concentrating; the state of being concentrated See examples of CONCENTRATION used in a sentence