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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
  • 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 Concentrated solutions have lots of solute, while dilute solutions have more solvent and less solute
  • 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)
  • 2. 2: Concentration - Chemistry LibreTexts
    This page outlines various units for measuring concentration in solutions, including molarity, formality, normality, molality, and several percentage-based methods
  • What Is a Concentration in Science: Definition Examples
    In science, concentration describes how much of one substance is mixed into another More precisely, it measures the quantity of a dissolved substance (the solute) present in a given amount of the liquid or material it’s dissolved in (the solvent or solution)
  • Concentration - Solutions - PhET Interactive Simulations
    What are all the ways you can change the concentration of your solution? Switch solutes to compare different chemicals and find out how concentrated you can go before you hit saturation!
  • Concentration Calculator
    Concentration describes the composition of a solution It is a phrase we typically use when discussing water-based solutions, but we can use it to refer to any mixture It is also the amount of a constituent (expressed with mass, moles, etc ) divided by the total mass or volume of a solution
  • Molarity or Molar Concentration - Definition, Formula, Examples
    Concentration: A measure of the amount of solute in a given quantity of solution or solvent Dilution: The process of reducing the concentration of a solution by adding more solvent
  • How Concentration Works in Dungeons Dragons - D D Beyond
    Concentration is an important mechanic in Dungeons Dragons, particularly if you're a spellcaster Here's a close look at how it works, how to better m





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