English dictionary
pendulum
/'p/E/n/dZ//@/l/@/m/
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
-
an apparatus consisting of an object mounted so that it swings freely under the influence of gravity
Source: WordNet 3.0
-
A body so suspended from a fixed point as to swing freely to and fro by the alternate action of gravity and momentum. It is used to regulate the movements of clockwork and other machinery.
Source: webster1913