Cycloid(a.) Of or pertaining to the Cycloidei.
Cycloid(n.) One of the Cycloidei.
Cycloid(n.) A curve generated by a point in the plane of a circle when the circle is rolled along a straight line, keeping always in the same plane.
Cycloidal(a.) Pertaining to, or resembling, a cycloid; as, the cycloidal space is the space contained between a cycloid and its base.
Words within cycloids