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Pronunciation:  `kânsun'treyshun

WordNet Dictionary
  1. [n]  strengthening the concentration (as of a solute in a mixture) by removing extraneous material
  2. [n]  bringing together military forces
  3. [n]  great and constant diligence and attention
  4. [n]  the strength of a solution; number of molecules of a substance in a given volume (expressed as moles/cubic meter)
  5. [n]  the spatial property of being crowded together
  6. [n]  complete attention; intense mental effort
  7. [n]  increase in density

CONCENTRATION is a 13 letter word that starts with C.


 Synonyms: absorption, assiduity, assiduousness, compactness, denseness, density, engrossment, immersion
 Antonyms: dilution, dispersion, distribution
 See Also: assemblage, assembly, attention, bits per inch, bpi, centering, compaction, compression, concretion, densification, diligence, direction, engrossment, flux, flux density, focus, focusing, focussing, gathering, hydrogen ion concentration, increase, industriousness, industry, intentness, M, molality, molar concentration, molarity, pervaporation, property, rarefaction, singleness, spacing, spatial arrangement, specialism, strengthening, study, titer, titre



Webster's 1913 Dictionary
\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 of the lunar beams.     --Boyle.

         Intense concetration of thought.      --Sir J.

2. The act or process of reducing the volume of a liquid, as
   by evaporation.

         The acid acquires a higher degree of concentration.

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.

 Definition: a notable accumulation of archaeological materials in a small area, such as a "concentration of flakes" etc.
Thesaurus Terms
 Related Terms: 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