2 entries found for
pendulum.
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Main Entry:
pen·du·lum 
Pronunciation:
pen-j
-l
m
Function:
noun
Etymology: from scientific Latin
pendulum "something suspended so as to swing freely," from Latin
pendulus "suspended," from
pend
re "to hang" --related to
DEPEND,
PERPENDICULAR
: a body hung from a fixed point so as to swing freely back and forth under the action of gravity