Definition of intermedium in English:

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Pronunciation: /ˌɪntəˈmiːdɪəm/

noun (plural intermedia /ˌɪntəˈmiːdɪə/)

(In tetrapods) a carpal in the centre of the wrist joint, or a tarsal in the centre of the ankle joint.
Example sentences
  • It is thickest at its presumed proximal end and is expanded medially to form an overlapping joint with the intermedium.
  • They therefore identified the medial, proximal tarsal bone of Diadectes as the intermedium and equated it with the reptilian astragalus.
  • The intermedium articulated only proximally and distally - that is, it did not articulate with other wrist bones.


Late 16th century (denoting an intervening action or performance): from late Latin, neuter (used as a noun) of Latin intermedius 'intermediate'.

For editors and proofreaders

Line breaks: inter|medium

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