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| At the most general level, a {\em cylindroid} is simply a cylinder that has been deformed in an intentional and well-defined way. The barrel die used in certain board role-playing games are sometimes described as being cylindroids in shape. |
At the most general level, a {\em cylindroid} is simply a cylinder that has been deformed in an intentional and well-defined way. The barrel die used in certain board role-playing games are sometimes described as being cylindroids in shape. |
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| Most mathematical dictionaries that define the term at all say nothing more than ``a cylinder with an elliptical cross-section.'' (see for example the {\it Harper-Collins Dictionary of Mathematics} and the {\it Oxford Concise Dictionary of Mathematics}.) The term is also used for certain conoids, such as Pl\"ucker's conoid. |
Most mathematical dictionaries that define the term at all say nothing more than ``a cylinder with an elliptical cross-section.'' (see for example the {\it Harper-Collins Dictionary of Mathematics} and the {\it Oxford Concise Dictionary of Mathematics}.) The term is also used for certain conoids, such as Pl\"ucker's conoid. |
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| The term is usually not included in general pocket dictionaries. The {\it Random House Unabridged Dictionary} defines cylindroid the noun as ``a solid having the form of a cylinder, esp[ecially] one with an elliptical, as opposed to a circular, cross section,'' and the adjective as ``resembling a cylinder.'' |
The term is usually not included in general pocket dictionaries. The {\it Random House Unabridged Dictionary} defines cylindroid the noun as ``a solid having the form of a cylinder, esp[ecially] one with an elliptical, as opposed to a circular, cross section,'' and the adjective as ``resembling a cylinder.'' |
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| \begin{thebibliography}{1} |
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| \bibitem{sr} S. P. Radzevich, ``A Possibility of Application of Pliicker's Conoid for Mathematical Modeling of Contact of Two Smooth Regular Surfaces in the First Order of Tangency'', {\it Mathematical and Computer Modelling} {\bf 42} (2005): 999 - 1022 |
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| \end{thebibliography} |
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