pendulum

名词 pendulum:

1. an apparatus consisting of an object mounted so that it swings freely under the influence of gravity

1. A pendulum oscillates.
   摆锤能摆动。
2. The pendulum of the clock in my room is a bear.
   我房间的钟摆是小熊形状的。

pen.du.lum

n.（名词）
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, especially clocks.Also called simple pendulum
摆：在一固定点悬垂的可在重力影响下自由来回摆动的摆体，通常用于调校钟等各种仪器也作 simple pendulum
Something that swings back and forth from one course, opinion, or condition to another:
沿某一路线、想法或事态来回摆动的东西：
例句：
the pendulum of public opinion.
民意变化不定

来源：
New Latin
现代拉丁语
probably from Italian pendolo [pendulous, pendulum]
可能源自 意大利语 pendolo [松垂的，钟摆]
from Latin pendulus [hanging] * see pendulous
源自 拉丁语 pendulus [垂悬的] *参见 pendulous