cycloid

Definition

The locus of a point on the circumference of a circle that rolls without slipping on a fixed straight line.

Etymology

From cyclo- + -oid.

Example Sentences

• "In the firſt Courſe there was a Shoulder of Mutton, cut into an Æquilateral Triangle, a Piece of Beef into a Rhomboides, and a Pudding into a Cycloid."