lat·er·al·i·ty /ˌlætəˈrælətɪ/ 名詞
  偏利(現象)
  Lat·er·al·i·ty n. The state or condition of being lateral.
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  laterality
       n 1: localization of function on either the right or left sides
            of the brain [syn: lateralization, lateralisation]
       2: the property of using one hand more than the other [syn: handedness]
       3: superior development of one side of the body [syn: dominance]