處所；地方
2.A center or focus of great activity or intense concentration:
核心：重要活動或註意力的中心或焦點：
“the cunning exploitation of loci of power; the insulation from normal American society”(Clifton Fadiman)
“對權力核心的巧妙利用；與正常的美國社會相隔絕”(克利夫頓·法迪曼)
Mathematics The set or configuration of all points whose coordinates satisfy a single equation or one or more algebraic conditions.
3.數學 軌跡：其坐標滿足某壹等式或壹個或多個代數條件的所有的點的集合或組合
4.The position that a given gene occupies on a chromosome.
基因座：在壹條染色體上某種給定基因所占的位置