Colorimetry
Pronunciation : Col`or*im"e*try
Part of Speech : n.
Definition : 1.
Defn: The quantitative determination of the depth of color of a substance.
2. A method of quantitative chemical analysis based upon the comparison of the depth of color of a solution with that of a standard liquid.
[See Colorimeter.]
Source : Webster's Unabridged Dictionary, 1913