A device, containing an inverted pendulum, used to mark time by means of regular ticks at adjustable intervals; an electronic equivalent that emits flashes.
A body suspended from a fixed support so that it swings freely back and forth under the influence of gravity, commonly used to regulate various devices such as clocks.
A watch's guard-ring by which it is attached to a chain.
Used to refer to the tendency of a situation to oscillate (between two extremes).
A lamp, etc. suspended from a ceiling.