First Known Use: 1962
Dictionary
R factor
noun \ˈär-\
Definition of R FACTOR
: a group of genes present in some bacteria that provide a basis for resistance to antibiotics and can be transferred from cell to cell by conjugation
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Origin of R FACTOR
resistance
Medical Dictionary
R factor
noun \ˈär-\
Medical Definition of R FACTOR
: a group of genes present in some bacteria that provide a basis for resistance to antibiotics and can be transferred from cell to cell by conjugation
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