a surface having parabolic sections parallel to a single coordinate axis and elliptic sections perpendicular to that axis
paraboloid详细解释
pa.rab.o.loid
n.（名词） A surface having parabolic sections parallel to a single coordinate axis and elliptic sections perpendicular to that axis. 抛物面：一种有与单坐标轴平行的抛物截面和与该轴垂直的椭圆截面的平面
