Studies on the effectiveness of cranberry juice for preventing or treating UTIs have produced mixed results. The red berry contains a tannin that prevents E. coli bacteria - the most common cause of urinary tract infections - from sticking to the walls of the bladder, where they can cause infection.
primary color for pigments - any of three pigments from which all colors can be obtained by mixing; the primary colors for pigments are red, blue, and yellow. primary colour for pigments. primary color, primary colour - any of three colors from which all others can be obtained by mixing.
Colors of pigment are produced by reflecting and absorbing certain wavelengths of light. Primary colors of pigment. A primary color of pigment is a color that reflects equal parts of any two of the (primary) colors of light (red, green and blue).Diagram A illustrates the result of projecting red, green and blue lights onto a white surface in overlapping fashion.See Diagram A) These three resulting colors, cyan, magenta and yellow, are the three primary colors of pigment. These are the purest colors, and cannot be produced by mixing other pigment colors. Using these three colors, you can produce a vast number of other colors.