Definition of citrovorum factor
: a metabolically active form of folic acid that has been used in cancer therapy to protect normal cells against methotrexate
Origin and Etymology of citrovorum factor
New Latin citrovorum, specific epithet of Leuconostoc citrovorum, bacterium that requires this form of folic acid
First Known Use: 1948See Words from the same year
Seen and Heard
What made you want to look up citrovorum factor? Please tell us where you read or heard it (including the quote, if possible).