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paraboloid

[puh-rab-uh-loid] /pəˈræb əˌlɔɪd/
noun, Geometry
1.
a surface that can be put into a position such that its sections parallel to at least one coordinate plane are parabolas.
Origin of paraboloid
1650-1660
1650-60; parabol(a) + -oid
Related forms
paraboloidal
[puh-rab-uh-loid-l, par-uh-buh-] /pəˌræb əˈlɔɪd l, ˌpær ə bə-/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for paraboloid

paraboloid

/pəˈræbəˌlɔɪd/
noun
1.
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 x²/a² ± y²/b² = 2cz
Derived Forms
paraboloidal, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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paraboloid in Science
paraboloid
  (pə-rāb'ə-loid')   
A surface having parabolic sections parallel to a single coordinate axis and elliptic sections perpendicular to that axis.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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