Intermedium
Pronunciation : In`ter*me"di*um, n.; pl. Intermediums
Part of Speech : L.
Etymology : [NL., neut. of L. intermedius intermediate.]
Definition : 1. Intermediate space. [R.]
2. An intervening agent or instrument. Cowper.
3. (Anat.)
Defn: The bone or cartilage between the radiale and ulnare in the carpus, and between the tibiale and fibulare in the tarsus. It corresponds to the lunar in the carpus, and to a part of the astragalus in the tarsus of man and most mammals.
Intermedia.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder