What is another word for knuckle joint?
Pronunciation: [nˈʌkə͡l d͡ʒˈɔ͡ɪnt] (IPA) 
A knuckle joint refers to a joint that allows for rotation between two objects. This type of joint is commonly used in machinery and engineering applications where movement is required. Several synonyms exist for the term "knuckle joint," such as universal joint, Cardan joint, Hookes joint, and Bell joint. Universal joint refers to a type of joint that allows for movement in multiple directions, while Cardan joint is a specific type of universal joint used in drive shafts. Hookes joint is also a type of universal joint but is used for more heavy-duty applications, while Bell joint is a specific type of knuckle joint used in plumbing and piping systems.
