CAM n. 2 definitions
h, by the shape of its periphery or face, or a groove in its surface, imparts variable or intermittent motion to, or receives such motion from, a rod, lever, or block brought into sliding or rolling contact with it.
CANCELLI n. 2 definitions
An interwoven or latticed wall or inclosure; latticework, rails, or crossbars, as around the bar of a court of justice, between the chancel and the have of a church, or in a window.