fulcrum

名词 fulcrum:

1. the pivot about which a lever turns

1. A member, such as a beam, that projects beyond a fulcrum and is supported by a balancing member or a downward force behind the fulcrum.
   悬臂，支架伸在支点之外的一个构件，如一段横梁，由与其持平衡的或向下的在支点后面的一个力支撑

ful.crum

n.（名词）
【复数】 ful.crums 或 ful.cra [-kr…]
The point or support on which a lever pivots.
支点：杠杆的支点或支轴
Zoology An anatomical structure that acts as a hinge or a point of support.
【动物学】 转节：解剖学上用作支点或转节的结构
An agent through which vital powers are exercised.
支柱，支持物：生命力赖以释放的动原

来源：
Latin [bedpost]
拉丁语 [床栓]
from fulcore [to support]
源自 fulcore [支撑]