/flang"keuhr/ , n.
1. a person or thing that flanks.
2. Mil. one of a body of soldiers placed on the flank of an army to guard a line of march.
3. Fort. a fortification projecting so as to defend another work or to command the flank of an assailing body.
4. Football.
a. Also called flanker back . an offensive back who lines up outside of an end.
b. See split end .
[ 1540-50; FLANK + -ER 1 ]