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Related to paraboloidal: Paraboloid of revolution
The equation for
a circular paraboloid is
A surface having parabolic sections parallel to a single coordinate axis and elliptic or circular sections perpendicular to that axis.
pa·rab′o·loi′dal (-loid′l) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.