American Heritage® Dictionary of the English Language, Fourth Edition
- n. A surface having parabolic sections parallel to a single coordinate axis and elliptic sections perpendicular to that axis.
Century Dictionary and Cyclopedia
- n. The solid generated by the revolution of a parabola about its axis; a parabolic conoid.
- n. A curve whose equation is of the form ax = y.
- n. A solid or surface of the second degree some of whose plane-sections are parabolas.
- n. mathematics A surface having a parabolic cross section parallel to an axis, and circular or elliptical cross section perpendicular to the axis; especially the surface of revolution of a parabola.
GNU Webster's 1913
- n. (Geom.) The solid generated by the rotation of a parabola about its axis; any surface of the second order whose sections by planes parallel to a given line are parabolas.
- n. a surface having parabolic sections parallel to a single coordinate axis and elliptic sections perpendicular to that axis
“A paraboloid is a three-dimensional shape that has two terms of x, y, or z that are squared and one term of x, y, or z that is not.”
“When one squared term is negative and one is positive, like in the second equation, the paraboloid is a hyperbolic paraboloid (shaped like a saddle When both squared terms are positive, like in the first equation, the paraboloid is an”
“We're back to my hyperbolic, paraboloid, transitional floating zone.”
“If you aren't quite sure what a hyperbolic paraboloid is, it's a mathematical term to describe a surface shaped like a saddle.”
“Geometrically, it's a hyperbolic paraboloid, but that's not very sexy.”
“Gaudi, of course, is the leading genius: his structural experiments took off from Catalan Gothic to produce amazing paraboloid arches; his rich details of fauna and flora in iron, stone or wildly colorful bits of tile drew on the work of the best Catalonian craftsmen.”
“It has 4 nester hyperboloid mirrors and 4 nested paraboloid mirrors to focus the x-rays.”
“It is not the scope of the synagogue that sets it apart, or the technical marvel of his hallmark hyperbolic paraboloid roofs — which he describes as being shaped something like a Pringles potato chip.”
“The saddle-shaped structure is also known as a hyperbolic paraboloid surface, or an anticlastic surface.”
“And interestingly, this turns out -- the stomatopod saddle turns out to be the first described biological hyperbolic paraboloid spring.”
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