noun
: a rigid body so mounted on a horizontal axis through its center of suspension that when the body is displaced it vibrates freely about its position of equilibrium — distinguished from simple pendulum
noun
: a rigid body so mounted on a horizontal axis through its center of suspension that when the body is displaced it vibrates freely about its position of equilibrium — distinguished from simple pendulum
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012