Some definitions for the above ICM Definition
Color space
A mapping of color components onto a Cartesian coordinate system in three or more dimensions.
White point
The whitest white that can be produced in a device's color gamut.
Color conversion
The process of converting colors from one color space to another.
Color matching
Matching a converted color to its visually closest color in the destination color space.
Colorant
Something, especially a pigment or an ink, that colors or modifies the hue of something else.
CMYK
The Cyan, Magenta, Yellow, and blacK color space. It is often implemented on printers.
Color channel
A component of a color space. For instance, an RGB color space has red, green, and blue color channels.
Rendering intent
Approaches to rendering color from one color space to another. The rendering intents used in ICM are defined by the International Color Consortium (ICC).
RGB
The Red, Green, and Blue color space.
RGB Triple
A quantity that contains RGB color space values.