du·al·i·ty /duˈæləti ||dju-/
二元性
duality
對偶性
duality
自偶性
duality
對偶性
Du·al·i·ty n. The quality or condition of being two or twofold; dual character or usage.
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duality
n 1: being twofold; a classification into two opposed parts or
subclasses; "the dichotomy between eastern and western
culture" [syn: dichotomy]
2: (physics) the property of matter and electromagnetic
radiation that is characterized by the fact that some
properties can be explained best by wave theory and others
by particle theory [syn: wave-particle duality]
3: (geometry) the interchangeability of the roles of points and
planes in the theorems of projective geometry