Femora pl. : of Femur

Example:
How long should a femur be in relation to your full height?

Taxonomy
femur, bone, femur bone, knee-joint, Body of femur, acetabulum, neck of the femur, body, vertebrates, legs, human femur, free encyclopedia, Search, birds, condyles, primitive, adductor tubercle, intercondylar fossa.

Defination from the web:
... The femur, or thigh bone, is the most proximal (closest to the body) bone of the leg in vertebrates capable of walking or jumping, such as most ...