[f. L. (or Eng.) color color + -λογια discourse: see -LOGY.] The scientific study or treatment of color. Hence Colorological, Colorologist.

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1867.  F. Francis, Angling, vi. (1880), 192. If it be urged that colorology is easier, [etc.]. Ibid., vi. 190. Two conflicting systems…; viz. the entomological and … colorological…. The colorologists argue that it is not necessary to trouble your head at all with considerations of what is on the water.

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