paraboloid

A surface having parabolic sections parallel to a single coordinate axis and elliptic or circular sections perpendicular to that axis.

A solid or surface of the second degree some of whose plane-sections are parabolas.

Paraboloidal.

The solid generated by the revolution of a parabola about its axis; a parabolic conoid.

A curve whose equation is of the form ax = y.

The solid generated by the rotation of a parabola about its axis; any surface of the second order whose sections by planes parallel to a given line are parabolas.

A surface having a parabolic cross section parallel to an axis, and circular or elliptical cross section perpendicular to the axis; especially the surface of revolution of a parabola.

a surface having parabolic sections parallel to a single coordinate axis and elliptic sections perpendicular to that axis