1. (

• complementary_color ,
• complementary

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

1. (

• complementary

) of words or propositions so related that each is the negation of the other; "`male' and `female' are complementary terms" ;

2. (

• complemental ,
• complementary ,
• completing

) acting as or providing a complement (something that completes the whole) ;