complementary

'complementary' in Webster

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In depth article on complementary found in wikipedia.


Com`ple*men"ta*ry  , n.
[See Complimentary.]
 One skilled in compliments. [Obs.] B.
Jonson.
 
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°.

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