[1] : The Collaborative International Dictionary of English v.0.48

femur \fe"mur\ f=e"mu^r, n.; pl. femora
   fe^m"-or.a. l. thigh. anat.
   a the thigh bone; -- it is the longest and thickest bone of
       the human skeleton, which extends from the pelvis to the
       knee.
   b the proximal segment of the hind limb containing the
       thigh bone; the thigh. see coxa.
       1913 webster + wordnet 1.5
see also:
femora coxa 

[2] : WordNet (r) 2.0

femur
     n : the longest and thickest bone of the human skeleton; extends
         from the pelvis to the knee syn: thighbone, femoris
     also: femora pl
see also:
thighbone femoris femora 

Femur >> F Words
Femur, definition of term: Femur
femur_pag1.html