1 definition by )SoFoS(

Top Definition
The observed property of light which is closely related to its wavelength.
A HeNe laser has a distinctive red colour of wavelength usually around 633nm.

Calling someone coloured is often considered racist.

Issac Newton decided there should be seven colours in the spectrum, even though only six are particularly well defined. Indigo only exists because of Newton's religious beliefs.

Colour is the correct spelling. :P
by )SoFoS( May 27, 2008

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