These are also called elliptical hyperboloids. If and only if a = b, it is a hyperboloid of revolution, and is also called a circular hyperboloid. == Properties == A hyperboloid of revolution of one sheet can be obtained by revolving a hyperbola around its semi-minor axis. Alternatively, a hyperboloid of two sheets of axis AB is obtained as the se...

Found on http://en.wikipedia.org/wiki/Hyperboloid

• (a.) Having some property that belongs to an hyperboloid or hyperbola. • (n.) A surface of the second order, which is cut by certain planes in hyperbolas; also, the solid, bounded in part by such a surface.

Found on http://thinkexist.com/dictionary/meaning/hyperboloid/

<geometry> A surface of the second order, which is cut by certain planes in hyperbolas; also, the solid, bounded in part by such a surface. ... Hyperboloid of revolution, 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 on...

Found on http://www.encyclo.co.uk/local/20973

**Hy·per'bo·loid** * noun* [

* Hyperbola* +

* -oid* : confer French

* hyperboloïde* .]

* (Geom.)* A surface of the second order, which is cut by certain planes in hyperbolas; also, the solid, bounded in part by such a surface.

** Hyperboloid of revolution** ,

an hyperboloid describe...

Found on http://www.encyclo.co.uk/webster/H/81

A quadratic surface of which there are two basic forms: a hyperboloid of one sheet, generated by spinning a hyperbola around its conjugate axis, and a hyperboloid of two sheets produced by rotating a hyperbola about its transverse axis. The hyperboloid of one sheet, first described by Archimedes, ha...

Found on http://www.daviddarling.info/encyclopedia/H/hyperboloid.html

the open surface generated by revolving a hyperbola (q.v.) about either of its axes. If the tranverse axis of the surface lies along the x axis and ...

Found on http://www.britannica.com/eb/a-z/h/91

[*n]* - a quadric surface generated by rotating a hyperbola around its main axis

Found on http://www.webdictionary.co.uk/definition.php?query=hyperboloid

**No exact match found**