pendulum

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noun pen·du·lum \-lÉ™m\

: a stick with a weight at the bottom that swings back and forth inside a clock

Full Definition of PENDULUM

1

:  a body suspended from a fixed point so as to swing freely to and fro under the action of gravity and commonly used to regulate movements (as of clockwork)

2

:  something (as a state of affairs) that alternates between opposites

Yes, "irregardless" is a word. No, that
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Origin of PENDULUM

New Latin, from Latin, neuter of pendulus

First Known Use: 1660

Other Mechanical Engineering Terms

centrifuge, differential, flange, lathe, linchpin, pinion, plenum, ratchet, traction