paraboloid

[puh-rab-uh-loid]

Origin of paraboloid

First recorded in 1650–60; parabol(a) + -oid
Related formspa·rab·o·loi·dal [puh-rab-uh-loid-l, par-uh-buh-] /pəˌræb əˈlɔɪd l, ˌpær ə bə-/, adjective
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Historical Examples of paraboloid


British Dictionary definitions for paraboloid

paraboloid

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 x ²/ a ² ± y ²/ b ² = 2 cz
Derived Formsparaboloidal, 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

paraboloid in Science

paraboloid

[pə-răbə-loid′]
  1. 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.