Hyperboloid of revolution

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an hyperboloid described by an hyperbola revolving about one of its axes. The surface has two separate sheets when the axis of revolution is the transverse axis, but only one when the axis of revolution is the conjugate axis of the hyperbola.

See also: Hyperboloid

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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References in periodicals archive
Tensile fabric structures brought to the fore the anticlastic shapes of sections of the hyperboloid of revolution. And recently the discussion has been on geodesics and "buckyballs." Similarly the geometry and the physics of the umbilicus will be scrutinized.
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The subreflector is a 57-inch diameter hyperboloid of revolution constructed of two frequency-selective surfaces supported by a hollow fiberglass mounting ring.
Subreflector Developed for Simultaneous S and X-Band from a Single Antenna
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