also: しんし
pendulum
Refers to a weight suspended from a pivot so that it can swing freely, used in clocks, physics experiments, and figuratively for something that swings back and forth.
A pendulum clock is ticking regularly in the corner of the room.
The period of a pendulum is determined by the length of the string.
The clock's pendulum is swinging slowly.
I stopped the pendulum for the experiment.
A pendulum's period is determined by its length.
Rare archaic reading for the simplified form. Not used in modern Japanese.