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in·ter·pha·lan·ge·al .int-ər-.fā-lən-'jē-əl, -.fal-ən-'jē-əl; -fə-'lan-jē-əl, -fā-'lan- adj situated or occurring between phalanges <an \interphalangeal joint> also of or relating to an interphalangeal joint <\interphalangeal flexion> <\interphalangeal arthroplasty>
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in·ter·pha·lan·ge·al (in″tər-fə-lanґje-əl) [inter- + phalangeal] situated between two contiguous phalanges.Medical dictionary. 2011.