[1] : The Collaborative International Dictionary of English v.0.48

intensity \inten"sity\, n. ll. intensitas: cf. f.
   intensit'e. see intense.
   1913 webster
   1. the state or quality of being intense; intenseness;
      extreme degree; as, intensity of heat, cold, mental
      application, passion, etc.
      1913 webster

            if you would deepen the intensity of light, you must
            be content to bring into deeper blackness and more
            distinct and definite outline the shade that
            accompanies it. --f. w. robertson.
      1913 webster

   2. physics the amount or degree of energy with which a
      force operates or a cause acts; effectiveness, as
      estimated by results produced.
      1913 webster

   3. mech. the magnitude of a distributed force, as pressure,
      stress, weight, etc., per unit of surface, or of volume,
      as the case may be; as, the measure of the intensity of a
      total stress of forty pounds which is distributed
      uniformly over a surface of four square inches area is ten
      pounds per square inch.
      1913 webster

   4. photog. the degree or depth of color or shade in a
      picture.
      1913 webster
see also:
intense 

[2] : WordNet (r) 2.0

intensity
     n 1: the amount of energy transmitted as by acoustic or
          electromagnetic radiation; "he adjusted the intensity
          of the sound"; "they measured the station's signal
          strength" syn: strength, intensity level
     2: high level or degree; the property of being intense syn: intensiveness
     3: the magnitude of sound usually in a specified direction;
        "the kids played their music at full volume" syn: volume,
         loudness ant: softness
     4: chromatic purity: freedom from dilution with white and hence
        vividness of hue syn: saturation, chroma, vividness
see also:
strength intensity level intensiveness volume loudness softness 
saturation chroma vividness 

[3] : Moby Thesaurus II by Grady Ward, 1.0

161 moby thesaurus words for "intensity":
   asa scale, british candle, hefner candle, scheiner scale,
   technicolor, abandon, acuteness, ampleness, amplitude, animality,
   ardency, ardor, atrocity, barbarity, bloodlust, bougie decimale,
   boundlessness, bright color, brightness, brilliance, brutality,
   bulk, candle, candle lumen, candle power, candle-foot, candle-hour,
   candle-meter, color, colorfulness, commitment, committedness,
   concentration, crescendo, decimal candle, dedication,
   demonic energy, destructiveness, devotedness, devotion, devoutness,
   dynamism, earnestness, energy, enormity, enormousness, ergal,
   expanse, exposure meter, extremity, faith, faithfulness,
   ferociousness, fervency, fervidness, fervor, fidelity, fierceness,
   fire, flux, focus, foot-candle, force, forcefulness,
   formidableness, fullness, furiousness, gaiety, gigantism,
   gorgeousness, grandeur, grandness, great scope, greatness,
   harshness, heartiness, heat, heatedness, hugeness, immensity,
   impassionedness, impetuosity, inclemency, infinity, inhumanity,
   intentness, international candle, kinetic energy, lamp-hour,
   largeness, light, light meter, light quantum, loudishness,
   loudness, loyalty, lumen, lumen meter, lumen-hour, lumeter,
   luminous flux, luminous intensity, luminous power, lux, magnitude,
   malignity, mercilessness, might, mightiness, mindlessness,
   muchness, murderousness, passion, passionateness, photon,
   pitilessness, plenitude, potency, potential energy, power,
   prodigiousness, pure color, quantum, resolution, richness, rigor,
   roughness, saturation, savagery, seriousness, severity, sharpness,
   sincerity, sonority, sonorousness, spirit, strength, strenuousness,
   stupendousness, surge, surge of sound, swell, swelling, terrorism,
   tremendousness, ungentleness, unit of flux, unit of light,
   vandalism, vastness, vehemence, venom, viciousness, vigor,
   violence, virulence, vitality, vividness, volume, warmth, zeal

Intensity >> I Words
Intensity, definition of term: Intensity
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