lo·cum te·nens (lō'kəm' tē'něnz', těn'ənz) n.
pl.locum te·nen·tes (tə-něn'tēz) A person, especially a physician or cleric, who substitutes temporarily for another.
[Medieval Latin locum tenēns : Latin locum, accusative of locus, place + Latin tenēns, present participle of tenēre, to hold.]
Main Entry: lo·cum te·nens Pronunciation: "lO-k&m-'tE-"nenz, -n&nz Function: noun Inflected Form: plurallocumte·nen·tes/-ti-'nen-"tEz/ : a medical practitioner who temporarily takes the place of another