citrovorum factor


ci·​trov·​o·​rum factor sə-ˈträ-və-rəm- How to pronounce citrovorum factor (audio)
: a metabolically active form of folic acid that has been used in cancer therapy to protect normal cells against methotrexate

Word History


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

Time Traveler
The first known use of citrovorum factor was in 1948

Dictionary Entries Near citrovorum factor

Cite this Entry

“Citrovorum factor.” Dictionary, Merriam-Webster, Accessed 7 Feb. 2023.

Medical Definition

citrovorum factor

ci·​trov·​o·​rum factor sə-ˈträv-ə-rəm- How to pronounce citrovorum factor (audio)
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