paraboloid
[ puhrabuhloid ]
/ pəˈræb əˌlɔɪd /

noun Geometry.
a surface that can be put into a position such that its sections parallel to at least one coordinate plane are parabolas.
Nearby words
 parabolic,
 parabolic aerial,
 parabolic antenna,
 parabolic mirror,
 parabolize,
 parabrake,
 parabulia,
 paracasein,
 paracel islands,
 paracelsus
Compare elliptic paraboloid, hyperbolic paraboloid.
Origin of paraboloid
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for paraboloid
paraboloid
/ (pəˈræbəˌlɔɪd) /
noun
a geometric surface whose sections parallel to two coordinate planes are parabolic and whose sections parallel to the third plane are either elliptical or hyperbolic. Equations x ²/ a ² ± y ²/ b ² = 2 cz
Collins English Dictionary  Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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paraboloid
[ pərăb′əloid′ ]
A surface having parabolic sections parallel to a single coordinate axis and elliptic sections perpendicular to that axis.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.