Cam (?), n. [Dan. kam comb, ridge; or cf. W. Gael., and Ir., cam bet. See 1st Come.]

1. Med. (a)

A turning or sliding piece which, 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

. (b)

A curved wedge, movable about an axis, used for forcing or clamping two pieces together.


A projecting part of a wheel or other moving piece so shaped as to give alternate or variable motion to another piece against which its acts.

Cams are much used in machinery involving complicated, and irregular movements, as in the sewing machine, pin machine, etc.


A ridge or mound of earth.

[Prow. Eng.]


Cam wheel Mach., a wheel with one or more projections (cams) or depressions upon its periphery or upon its face; one which is set or shaped eccentrically, so that its revolutions impart a varied, reciprocating, or intermittent motion.


© Webster 1913.

Cam (?), a. [See Kam.]




© Webster 1913.