Definition of "intermedium" [in•ter•me•di•um]

• An intermediary (noun)
• A central carpal bone or tarsal bone (noun)

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• "Shubin et al.: "In both Tiktaalik and early tetrapods, the ulnare is block-shaped and articulates with multiple radials or digits, whereas the intermedium is a simple rod.""
• "(p. 186), and as "intermedium" (p. 194) terms which are certainly not understood by the general."
• "Brazil and Argentina have signed a deal which will let them do away with the US dollar as an intermedium in their bilateral trade."