com·ple·men·ta·ry /ˌkɑmpləˈmɛntərɪ, ˈmɛntrɪ/ 形容詞
Com·ple·men·ta·ry a. Serving to fill out or to complete; as, complementary numbers.
Complementary colors. See under Color.
Complementary angles Math., two angles whose sum is 90°.
Com·ple·men·ta·ry, n. One skilled in compliments. [Obs.]
adj 1: acting as or providing a complement (something that
completes the whole) [syn: complemental, completing]
2: of words or propositions so related that each is the
negation of the other; "`male' and `female' are
3: of or relating to or suggestive of complementation;
"interchangeable electric outlets" [syn: interchangeable,
n : 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" [syn: