Idioms for color
Also
especially British,
col·our.
Origin of color
1250–1300; Middle English
col(o)ur < Anglo-French (French
couleur) < Latin
colōr- (stem of
color) hue
usage note for color
See
-or1.
usage note for color
See
black.
OTHER WORDS FROM color
Words nearby color
Definition for color (2 of 2)
color.
(in prescriptions) let it be colored.
Origin of color.
From the Latin word
colōrētur
Example sentences from the Web for color
British Dictionary definitions for color
Derived forms of color
Medical definitions for color
color
[ kŭl′ər ]
n.
That aspect of the appearance of objects and light sources that may be specified in terms of hue, lightness, and saturation.
That portion of the visible electromagnetic spectrum specified in terms of wavelength, luminosity, and purity.
The general appearance of the skin.
The skin pigmentation of a person not classified as white.
Scientific definitions for color
color
[ kŭl′ər ]
The sensation produced by the effect of light waves striking the retina of the eye. The color of something depends mainly on which wavelengths of light it emits, reflects, or transmits.
Color charge. See also hadron.
A Closer Look
When beams of colored light are mixed, or added, their wavelengths combine to form other colors. All spectral colors can be formed by mixing wavelengths corresponding to the additive primaries red, green, and blue. When two of the additive primaries are mixed in equal proportion, they form the complement of the third. Thus cyan (a mixture of green and blue) is the complement of red; magenta (a mixture of blue and red) is the complement of green; and yellow (a mixture of red and green) is the complement of blue. Mixing the three additive primaries in equal proportions reconstitutes white light. When light passes through a color filter, certain wavelengths are absorbed, or subtracted, while others are transmitted. The subtractive primaries cyan, magenta, and yellow can be combined using overlapping filters to form all other colors. When two of the subtractive primaries are combined in equal proportion, they form the additive primary whose wavelength they share. Thus overlapping filters of cyan (blue and green) and magenta (blue and red) filter out all wavelengths except blue; magenta (blue and red) and yellow (red and green) transmit only red; and yellow (red and green) and cyan (blue and green) transmit only green. Combining all three subtractive primaries in equal proportions filters out all wavelengths, producing black. Light striking a colored surface behaves similarly to light passing through a filter, with certain wavelengths being absorbed and others reflected. Pigments are combined to form different colors by a process of subtractive absorption of various wavelengths.
Idioms and Phrases with color
color