单词	knuckle joint
释义	knuckle joint noun : a hinge joint in which a projection with an eye on one piece enters a jaw between two corresponding projections with eyes on another piece and is retained by a pin or rivet Illustration of knuckle joint Example Sentences Recent Examples on the Web Piecewise solutions To understand cavitation in knuckle joints, a pair of physicists analyzed its processes separately: bubble formation, bubble collapse, and sound-wave generation. Chris Lee, Ars Technica, 5 Apr. 2018 Word History First Known Use circa 1864, in the meaning defined above
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