S: (n) agent, factor, broker (a businessman who buys or sells for another in exchange for a commission)
S: (n) factor (any of the numbers (or symbols) that form a product when multiplied together)
S: (n) factor (an independent variable in statistics)
S: (n) gene, cistron, factor ((genetics) a segment of DNA that is involved in producing a polypeptide chain; it can include regions preceding and following the coding DNA as well as introns between the exons; it is considered a unit of heredity)