WordNet
n. the normal ability to see colors [syn: chromatic vision, trichromacy]
Wikipedia
Color vision is the ability of an organism or machine to distinguish objects based on the wavelengths (or frequencies) of the light they reflect, emit, or transmit. Colors can be measured and quantified in various ways; indeed, a person's perception of colors is a subjective process whereby the brain responds to the stimuli that are produced when incoming light reacts with the several types of cone cells in the eye. In essence, different people see the same illuminated object or light source in different ways.
Usage examples of "color vision".
Her color vision surged under the impact of the chrom-otropics lacing her cigarette, and the little city below her became quite stunning, a Fauvist fantasia.
The world that you see in dim light is similar to the world of the achromat, that rare person who has no color vision at all.
After that came a color vision test, and a test of depth perception, and then pictures of her crew, to see if facial recognition was working.
They held one another, Sec looking down to green eyes that with his poor color vision seemed brown.
What this picture depicts corresponds to the subjective experience that one particular patient described to us, namely, the loss of color vision on the left visual field, with color vision preserved on the right.