flank

Flank is a term used in anatomy, geography, military, and cuisine. As a noun, flank denotes the side of an object, particularly the lateral area of the human or animal body between the ribs and the hip. As a verb, to flank means to stand at or move to the side of something, or to attack from the side.

Anatomy: In human anatomy, the flank is the lateral region between the thorax and the pelvis. The kidneys and retroperitoneal structures lie near the flank, and flank pain can result from kidney stones, musculoskeletal strain, or other conditions.

Military and strategy: In military terms, a flank is the side edge of a formation. A flanking maneuver seeks to surprise or bypass the front and attack from the side or rear, often influencing battlefield outcomes.

Geography and geology: The term flank is used for the side or slope of a geographic feature such as a mountain, hill, or volcano. A flank may differ in geology or vegetation from other sides due to exposure and microclimates.

Culinary use: In cooking, flank refers to a cut of beef from the abdominal muscles. Flank steak is flavorful and lean but relatively tough, and is commonly marinated and cooked quickly, then sliced thinly for dishes such as fajitas or stir-fries.