(British spelling) Any of three colours which, when added to or subtracted from others in different amounts, can generate all other colours

(British spelling) Alternative form of colour blind

British spelling spelling of color blind

(snooker) Any one of the three colours normally spotted on the baulk line in snooker. Namely the yellow, green, and brown balls.

(British spelling) Any of three colours derived from mixing two primary colours

(British spelling) Any colour that results from the mixing of two secondary colours, or of a primary colour and an adjacent secondary colour.

(British spelling, physics) Alternative spelling of color charge

(physics) A fundamental force that is associated with the strong bonds, created by the associated bosons known as gluons, between quarks and other subatomic particles, by way of the colour charge

Alternative spelling of off-color

plural of colour wheel