Fibular collateral ligament
Joints and ligaments · Latin: Ligamentum collaterale fibulare
The lateral collateral ligament (LCL, long external lateral ligament or fibular collateral ligament) is a ligament located on the lateral (outer) side of the knee, and thus belongs to the extrinsic knee ligaments and posterolateral corner of the knee.
Definition from Wikipedia, CC BY-SA 4.0.