The Collaborative International Dictionary
Cylindroid \Cyl"in*droid\ (s?l"?n-droid), n. [Gr. ky`lindros cylinder + -oid: cf. F. cylindro["i]de.]
A solid body resembling a right cylinder, but having the bases or ends elliptical.
(Geom.) A certain surface of the third degree, described by a moving straight line; -- used to illustrate the motions of a rigid body and also the forces acting on the body.
Wiktionary
n. 1 (context geometry English) A cylinder with elliptical cross-section. 2 (context geometry English) A certain three-dimensional surface described by a moving straight line, used to illustrate the motions of a rigid body and the forces that act upon it.
Wikipedia
Cylindroid may refer to:
- Elliptic cylinder, a cylinder with an ellipse as its cross-section
- An adjectival form of Cylinder (geometry), regardless of cross-section
- Plücker's conoid, a self-intersecting ruled surface whose cross-sections are pairs of crossing lines
Usage examples of "cylindroid".
Beyond it on four sides reached gleaming planes that came to knifelike edges at some distance he did not yet know how to gauge-four of the solar and magnetic sails that stabilized the great cylindroid on its path and its axis.
Flattened into concentric cylindroids, it would dwarf the satellite of Luna.