Equatorial plate An arrangement of the chromosomes in which the centromeres become aligned in a single plane at the center of the spindle during metaphase of mitosis and meiosis.

• 赤道板：在细胞有丝分裂和减数分裂的中期，横隔在细胞中央的一个平面，位于纺锤体的中心。染色体的着丝粒沿这个平面排列。