A long, narrow structure which protrudes from the surface of the male bacterial individual and connects the male to the female bacterial individual during the process of bacterial conjugation, when genetic material in the form of the f plasmid is transferred between individual bacterial cells. ... (09 Oct 1997) ... 
Type: Term Definitions: 1. a structure responsible for attachment of individual male (F+) to female (F−) bacteria, forming conjugal pairs.
specialized type of pilus that aids in DNA transfer between cells; conjugation pilus of E. coli