orthantWiktionary 原文英美构词拆解orthortho-前缀ant-ant后缀ortho-Right angle, perpendicular. · Proper, righteous, pure.-ant(now sciences, chiefly medicine) The agent noun derived from verb. · An adjective corresponding to a noun in -ance, having the sense of "exhibiting (the condition or process described by the noun)".释义名词noun1(geometry) An n-dimensional generalization of the quadrant (in two-dimensional Cartesian space) and octant (in three-dimensional space).同族词派生词 1orthoplex