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nouna surface having parabolic sections parallel to a single coordinate axis and elliptic sections perpendicular to that axistype of:
Definition that contains paraboloid
- paraboloidal having the shape of a paraboloid
- gregorian telescope a reflecting telescope that has a paraboloidal primary mirror and a hyperboloidal secondary mirror; light is brought to a focus through an aperture in the center of the primary mirror
- cassegrainian telescope a reflecting telescope that has a paraboloidal primary mirror and a hyperboloidal secondary mirror; light is brought to a focus through an aperture in the center of the primary mirror