citrovorum factor

noun

ci·​trov·​o·​rum factor sə-ˈträ-və-rəm- 

: a metabolically active form of folic acid that has been used in cancer therapy to protect normal cells against methotrexate

Word History

Etymology

New Latin citrovorum, specific epithet of Leuconostoc citrovorum, bacterium that requires this form of folic acid

First Known Use

1948, in the meaning defined above

Medical Definition

citrovorum factor

noun

ci·​trov·​o·​rum factor sə-ˈträv-ə-rəm- 

: leucovorin