A clock is an instrument to indicate, keep, and co-ordinate time. A silent instrument missing such a striking mechanism has traditionally been known as a timepiece. In general usage today a "clock" refers to any device for measuring and displaying the time.
Bellairs makes extensive usage of clocks and timepieces in his writing, including:
- A statue of Buddha on the Cathedral of Saint Gorboduc has a clock in its belly. A lotus blossom in the statue's navel goes in and out with the ticks of the timepiece (Saint Fidgeta and Other Parodies; 34).