escapement

noun

es·​cape·​ment i-ˈskāp-mənt 

1

a

: a device in a timepiece which controls the motion of the train of wheelwork and through which the energy of the power source is delivered to the pendulum or balance by means of impulses that permit a tooth to escape from a pallet at regular intervals

b

: a ratchet device (such as the spacing mechanism of a typewriter) that permits motion in one direction only in equal steps

2

a

: the act of escaping

b

: a way of escape : vent

Illustration of escapement

• escapement 1a

Examples of escapement in a Sentence

Recent Examples on the Web

In place of a discrete escapement controlled by an oscillating balance wheel, there is a rotating glide wheel that is electrically braked by magnets controlled using a quartz oscillator. —David Flett, Robb Report, 16 Oct. 2024

He is also known for several other groundbreaking inventions, including several advanced escapements, such as the first automatic movement. —Anthony Demarco, Forbes, 2 Oct. 2024

The Grand Seiko range would continue for almost two decades, developing from one initial time-only caliber to others with date and day complications, automatic winding, and high-beat escapements. —David Flett, Robb Report, 30 Sep. 2024

Patek added a loupe to the sapphire crystal caseback to allow the wearer to appreciate the advanced escapement. —Thomas Wojtowicz, Forbes, 19 Sep. 2024

Word History

First Known Use

1779, in the meaning defined at sense 1a