paraboloid Meaning, Definition & Usage

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

WordNet

Pa*rab"o*loid noun
Etymology
Parabola + -oid: cf. F. paraboloïde.
Definitions
  1. (Geom.) 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. ✍ The term paraboloid has sometimes been applied also to the parabolas of the higher orders. Hutton.

Webster 1913