Definitions for "F-factor"
(forfertility factor) A kind of episome in bacteria that can replicate either autonomously or in integrated form; can move from one bacterium to another during conjugation.
An E. coli plasmid that encodes conjugative transfer ("fertility") functions. The F-plasmid may exist as an autonomous plasmid in the cytoplasm or may integrate into specific sites in the chromosome, producing an Hfr cell.
an estimate of the amount of combustion gas volume that is generated per fuel heat input for a given type of fuel, expressed in units, for example, cubic feet of combustion gas per million British thermal units (BTU) of fuel burned