apocenterWiktionary 原文英美构词拆解apoapo-前缀centercenter词干apo-Lacking, without, scant. · Away from, outward, or apart in direction.词源说明From apo- + center.释义名词noun1(astronomy) The furthest point of an astronomical object in an elliptical orbit to its center of attraction (the principal focus of the ellipse)同族词相关词 1apoapsis