complementary

英 [k?mpl?'ment(?)r?] 美['kɑmpl?'m?ntri]
  • adj. 補(bǔ)足的，補(bǔ)充的

英英釋意

1. either one of two chromatic colors that when mixed together give white (in the case of lights) or gray (in the case of pigments);
"yellow and blue are complementaries"