( n. )
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.
( n. )
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.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012