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.
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 it acts.
I think most people read and re-read the things that they have liked. That's certainly true in my case. I re-read Pound a great deal, I re-read Williams, I re-read Thomas, I re-read the people whom I cam to love when I was at what you might call a formative stage. James Laughlin
People were talking while I was playing, so I got up and left the stage. I've gotten to the point where I'm not really very patient with patrons rapping during the show. And the people were all nice and quiet when I cam back. Bruce Hornsby