Retarder

/rɪˈtɑːrdər/noun

A device fitted to a heavy vehicle, such as a truck or train, that helps slow it down without relying on the brakes.

An auxiliary braking device, often hydraulic or electromagnetic, that reduces a vehicle's speed and lessens wear on its main brakes.

Urdu

بھاری گاڑیوں میں لگایا جانے والا ایک آلہ جو بریکوں پر دباؤ کم کرتے ہوئے گاڑی کی رفتار کم کرنے میں مدد دیتا ہے۔

Hindi

भारी वाहनों में लगाया जाने वाला एक उपकरण जो ब्रेक पर दबाव कम करते हुए वाहन की गति कम करने में मदद करता है।

The bus driver used the retarder to control speed on the steep mountain descent.

Related words

Practice

Long-haul trucks often use a to reduce brake wear on steep downhill roads.