in·​ter·​os·​se·​us ˌin-tər-ˈäs-ē-əs How to pronounce interosseus (audio)
plural interossei -ē-ˌī How to pronounce interosseus (audio)
: any of various small muscles arising from the metacarpals and metatarsals and inserted into the bases of the first phalanges:

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Cite this Entry

“Interosseus.” Medical Dictionary, Merriam-Webster, Accessed 27 Mar. 2023.

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