locum tenens

[loh-kuh m tee-nenz, ten-inz] /ˈloʊ kəm ˈti nɛnz, ˈtɛn ɪnz/
noun, plural locum tenentes
[loh-kuh m tuh-nen-teez] /ˈloʊ kəm təˈnɛn tiz/ (Show IPA). Chiefly British
1.
a temporary substitute, especially for a doctor or member of the clergy.
Also called locum.
Origin
1635-45; < Medieval Latin locum tenēns holding the place
Related forms
locum-tenency
[loh-kuh m-tee-nuh n-see, -ten-uh n-] /ˌloʊ kəmˈti nən si, -ˈtɛn ən-/ (Show IPA), noun
British Dictionary definitions for locum tenens

locum tenens

/ˈləʊkəm ˈtiːnɛnz/
noun (pl) locum tenentes (təˈnɛntiːz)
1.
(mainly Brit) a person who stands in temporarily for another member of the same profession, esp for a physician, chemist, or clergyman Often shortened to locum
Word Origin
C17: Medieval Latin: (someone) holding the place (of another)
Word Origin and History for locum tenens
n.

Medieval Latin, "one who holds the place (of another);" from locum (nominative locus; see locus) + tenens, present participle of tenere (see tenant).