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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 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 - Wikipedia
    The concentration can refer to any kind of chemical mixture, but most frequently refers to solutes and solvents in solutions The molar (amount) concentration has variants, such as normal concentration and osmotic concentration
  • CONCENTRATION | English meaning - Cambridge Dictionary
    concentration noun (SUBSTANCE) the amount of a substance that is mixed with water or another substance (Definition of concentration from the Cambridge Academic Content Dictionary © Cambridge University Press)
  • What Does Concentration Mean in Chemistry? - ThoughtCo
    Concentration in chemistry is the amount of substance in a specific volume or space There are different ways to calculate concentration, like molarity, mass concentration, and volume percent
  • Concentration - Definition, Meaning Synonyms | Vocabulary. com
    If you have great powers of concentration, that means you're able to focus all your attention on the matter at hand Concentration can also refer to something that's clustered together or to the density or strength of a solution
  • How to Improve Concentration: 14 Tips to Help You Focus
    Concentration refers to the mental effort you direct toward a task It’s sometimes confused with attention span, which refers to the length of time you can concentrate on something
  • CONCENTRATION Definition Meaning | Dictionary. com
    If you have great powers of concentration, that means you're able to focus all your attention on the matter at hand Concentration can also refer to something that's clustered together or to the density or strength of a solution
  • CONCENTRATION definition | Cambridge English Dictionary
    concentration noun (SUBSTANCE) the amount of a substance that is mixed with water or another substance (Definition of concentration from the Cambridge Academic Content Dictionary © Cambridge University Press)
  • CONCENTRATION Simple Definition - Merriam-Webster
    The simple definition of CONCENTRATION is the ability to give your attention or thought to a single object or activity : the ability to concentrate
  • 2. 2: Concentration - Chemistry LibreTexts
    Concentration is a general measurement unit that reports the amount of solute present in a known amount of solution or solvent Although we associate the terms “solute” and “solution” with liquid samples, we can extend their use to gas-phase and solid-phase samples as well





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