detent

Etymology
From, from.

Noun

 * 1) That which locks or unlocks a movement; a  (stopping mechanism), pawl, or ; especially, in clockwork, the  which locks and unlocks the wheelwork in striking.
 * 2) * 1972, Mayer et al., United States Patent 3760640, abstract:
 * A UHF tuner having 70 detent positions with fine tuning capability at all locations. Coarse tuning is accomplished via a toothed, detented disk and a spirally-extending rim having a follower lever operable therewith.

Translations

 * Bulgarian: ograniìte,
 * German: Sperrklinke,

Verb

 * 1) The action of creating a detent mechanism to lock or unlock movement.