cen.tric
adj.（形容词）Situated at or near the center; central.中央的：位于或靠近中心的；中央的Having a center.有一个中心的Of or relating to diatoms of the class Centrales, distinguished by their radially symmetrical form.中心类硅藻的：中心类硅藻的或与之相关的，以其辐射状对称形态为特征
【引伸】
cen.trically
adv.（副词）centric.ity
