hy·per·bo·loid

(hī-pûr′bə-loid′)

Either of two quadric surfaces generated by rotating a hyperbola about either of its main axes and having a finite center with certain plane sections that are hyperbolas and others that are ellipses or circles.

hy·per′bo·loid′al (-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.

hyperboloidal

(ˌhaɪpəbəˌlɔɪdəl)

adj

(Mathematics) maths resembling the shape of a hyperboloid

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

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Adj.

hyperboloidal - having the shape of a hyperboloid

rounded - curving and somewhat round in shape rather than jagged; "low rounded hills"; "rounded shoulders"

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References in periodicals archive

Together, they constitute a 30-m wide hyperboloidal mirror.

MONSTER SCOPES: Astronomers and engineers are boldly building a generation of Telescopes like none that has gone before

Their method of proof, the Hyperboloidal Foliation Method, extends the standard "vector field method" developed for massless fields, and importantly, does not use the scaling vector field of Minkowski space.

The Global Nonlinear Stability of Minkowski Space for Self-Gravitating Massive Fields

To design a planar acoustic lens, a hyperboloidal phase profile is employed on the metasurfaces.

Anomalous Reflection of Acoustic Waves in Air with Metasurfaces at Low Frequency

Sakovich, "Reduction arguments for geometric inequalities associated with asymptotically hyperboloidal slices," Classical and Quantum Gravity, vol.

The Conformal Flow of Metrics and the General Penrose Inequality

[91] investigated a solar concentrator containing primary paraboloidal and secondary hyperboloidal mirrors by using the ray tracing method to obtain higher concentration ratio.

A review of solar photovoltaic concentrators

Yachida, "Omnidirectional imaging with hyperboloidal projection," in Proceedings of the International Conference on Intelligent Robots and Systems, pp.

An improved extended information filter SLAM algorithm based on omnidirectional vision

Friedrich, "On the regularity of solutions to the Yamabe equation and the existence of smooth hyperboloidal initial data for Einstein's field equations," Communications in Mathematical Physics, vol.

An efficient collocation method for a class of boundary value problems arising in mathematical physics and geometry