A surface having parabolic parts parallel to a single coordinate axis and elliptic areas perpendicular to this axis.

A surface having a parabolic cross-section parallel to an axis, and circular or elliptical cross section perpendicular on axis; particularly the surface of transformation of a parabola.

The solid generated by the rotation of a parabola about its axis; any area for the second order whoever areas by airplanes parallel to certain line are parabolas.

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

A curve whose equation is of form ax = y.

a good or area regarding the second degree several of whoever plane-sections tend to be parabolas.

a surface having parabolic parts parallel to just one coordinate axis and elliptic parts perpendicular compared to that axis

## How would you define paraboloid?