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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.


(Mathematics) maths resembling the shape of a hyperboloid
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.hyperboloidal - having the shape of a hyperboloid
rounded - curving and somewhat round in shape rather than jagged; "low rounded hills"; "rounded shoulders"
References in periodicals archive ?
the rotation cylinder is the most technological shape, therefore it is more easily achieved than other shapes (conical, spherical, hyperboloidal shape etc.
The cylindrical fragment changes into hyperboloidal fragment with variable section (Plahteanu & Belous, 2000).