primary colour for pigments

NOUN
27 LETTERS · STARTS WITH P

primary colour for pigments is a valid 27-letter word worth 41 points in Scrabble and 49 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
P3R1I1M3A1R1Y4C3O1L1O1U1R1F4O1R1P3I1G2M3E1N1T1S1
3 + 1 + 1 + 3 + 1 + 1 + 4 + 0 + 3 + 1 + 1 + 1 + 1 + 1 + 0 + 4 + 1 + 1 + 0 + 3 + 1 + 2 + 3 + 1 + 1 + 1 + 1 =41 PTS
DOUBLE WORD → 82TRIPLE WORD → 123
MEANING

What does primary colour for pigments mean?

NOUN · 1 SENSE
1

Any of three pigments from which all colors can be obtained by mixing.