locum te·nens /-ˈtiˌnɛnz, ˈtɛ, nənz/
  lo·cum te·nens /ˌlokəmˈtɪˌnɛnz, nənz/ 名詞
  代理開業醫師
  Lo·cum te·nens n.  A substitute or deputy; one filling an office for a time.
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  locum tenens
       n : someone (physician or clergyman) who substitutes temporarily
           for another member of the same profession [syn: locum]