The medical prefix term medi(a)- or medi(o)- means “middle”.
Example Word: medi(o)/tars/al
Word Breakdown: Medi(o)- pertains to “middle”, tars is a word root that refers to “ankle”, and -al is a suffix term that means “pertaining to”.
Definition: Mediotarsal is in the middle of the tarsal (ankle) region.