hand.ed.ness
n.（名词）A preference for using one hand as opposed to the other.手性：用一只手而不用另一只手的习惯Chemistry Physics The property that distinguishes an asymmetric from its mirror image but not from a rotated object.【化学】 【物理学】 旋向性：一种从一个物体的镜像而不是从转动的物体中分辨其不对称性的特点
