Cylindroid
Pronunciation : Cyl"in*droid (sl"n-droid)
Part of Speech : n.
Etymology : [Gr. -oid: cf. F. cylindro.]
Definition : 1. A solid body resembling a right cylinder, but having the bases or ends elliptical.
2. (Geom.)
Defn: 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.
Source : Webster's Unabridged Dictionary, 1913