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colour, <psychophysical>
color, <psychophysical> US
specification of a colour stimulus in terms of operationally defined values, such as three tristimulus values
Note 1 to entry: This entry was numbered 845-03-01 in IEC 60050-845:1987.
Note 2 to entry: This entry was numbered 17-197 and 17-190 in CIE S 017:2011.