Definition of "interphalangeal" [in•ter•pha•lan•ge•al]

• Between phalanges, as with an interphalangeal joint. (adjective)

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• "While Emma was gone, I removed each of the right digits at the level of the first interphalangeal joint."
• "Over the years compensatory deformity developed in the metacarpo-phalangeal and distal interphalangeal joints."
• "Christelle had a ninety-degree flexion contracture in the proximal interphalangeal joint of her right little finger."