femur

UK: ˈfiːmə | US: ˈfiːmər

Definition
  1. n. the bone of the thigh or upper hind limb, extending from the hip to the knee in humans and similar structures in other vertebrates.

Structure
femur <thigh bone>
Etymology

The word "femur" comes directly from Latin femur, meaning "thigh" or "thigh bone." It has retained its original spelling and meaning in English, referring specifically to the long bone in the upper leg. The term is a classic example of a Latin anatomical loanword adopted unchanged into scientific and medical English.

Examples
  1. The femur is the longest and strongest bone in the human body.

  2. A fracture of the femur often requires surgical intervention.

  3. In quadrupeds, the femur connects the hip to the knee joint.

  4. Paleontologists studied the dinosaur femur to estimate its size and gait.

  5. The athlete suffered a stress fracture in her femur during training.