flank
1. flank \'flank\ n [ME, fr. OF flanc, of Gmc origin; akin to OHG hlanca loin, flank m more at LANK 1a: the fleshy part of the side between the ribs and the hip; broadly : the side of a quadruped 1b: a cut of meat from this part of an animal 2a: SIDE 2b: the right or left of a formation 2. flank vt 1: to protect a flank of 2a: to attack or threaten the flank of 2b: to turn the flank of 3a: to be situated at the side of : BORDER 3b: to place something on each side of - flank.er n