Color

(kul' -or) [L.]. 1. A visual sensation due to radiated or reflected light. 2. That quality of an object perceptible to sight alone. 3. A pigment. C. -analysis, Ehr- lich's method of identifying the various forms of leukocytes. It depends upon the distinctive manner in which the protoplasmic granules react toward the acid, basic, and socalled neutral solutions of the anilin dyes. Five varieties of granules are recognized and designated by the Greek letters, a, ft, y, d, e:(1) a-granules (eosinophil, oxyphil, or coarse oxyphil granules);(2) ft-granules (amphophil granules);(3) "{-granules (mast- cell or coarse basophil granules);(4) d-gran- ules (fine basophil granules);(5) s-granules (neutrophil or fine oxyphil granules). C- blindness. See Blindness, Color-. C. -gusta- tion. See Pseudogeusesthesia. C. -hearing, the excitation of the visual center for color through the auditory nerve. C. -sensation, the perception of color; it depends on the number of vibrations of the ether.

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