a river in east central England that flows past Cambridge to join the Ouse River
source: WordNet 3.0
a rotating disk shaped to convert circular into linear motion
source: WordNet 3.0
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.
