Illustration of knuckle joint
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
Examples of knuckle joint in a Sentence
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Stretch both joints by holding the finger below the knuckle joint and bending both joints.
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Lana Barhum, Verywell Health, 14 Aug. 2024
All the fingers share one big pivot point at the palm of the hand, and there's a knuckle joint halfway up the finger.
—Ron Amadeo, Ars Technica, 6 Feb. 2024
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
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Lana Barhum, Verywell Health, 14 Aug. 2024
All the fingers share one big pivot point at the palm of the hand, and there's a knuckle joint halfway up the finger.
—Ron Amadeo, Ars Technica, 6 Feb. 2024
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
Cite this Entry
“Knuckle joint.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/knuckle%20joint. Accessed 21 Jul. 2025.
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