metacarpophalangeal
adjective
meta·car·po·pha·lan·ge·al
| \ ˌmet-ə-ˌkär-pō-ˌfā-lən-ˈjē-əl, -ˌfa-, -fə-ˈlan-jē-
\
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Medical Definition of metacarpophalangeal
: of, relating to, or involving both the metacarpus and the phalanges
a metacarpophalangeal joint