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A catch or lever that locks the movement of one part of a mechanism.
(Mechanical Engineering) the locking piece of a mechanism, often spring-loaded to check the movement of a wheel in one direction only. See also pawl
[C17: from Old French destente, a loosening, trigger: see détente]
a mechanism that temporarily keeps one part in a certain position relative to another, and can be released by applying force to one of the parts.
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|Noun||1.||detent - a hinged catch that fits into a notch of a ratchet to move a wheel forward or prevent it from moving backward|
catch, stop - a restraint that checks the motion of something; "he used a book as a stop to hold the door open"