noun🔗ShareThe back piece of a chair, used to support the sitter's back."The armchair had a comfortable backrest, perfect for relaxing after a long day at work. "partitembuildingarchitectureutilitywearChat with AIVocabulary GamePractice Reading
noun🔗ShareA guide attached to the slide rest of a lathe, and placed in contact with the work to steady it in turning."The machinist carefully adjusted the backrest on the lathe to prevent the long, thin metal rod from vibrating during the turning process. "technicalmachineworkdeviceChat with AIVocabulary GamePractice Reading
