Medical Dictionary

interosseus

noun in·ter·os·se·us \ˌin-tər-ˈäs-ē-əs\
plural in·ter·os·sei \-ē-ˌī\

Medical Definition of INTEROSSEUS

:  any of various small muscles arising from the metacarpals and metatarsals and inserted into the bases of the first phalanges: a :  dorsal interosseus b :  palmar interosseus c :  plantar interosseus
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