plural femurs or femora
ˈfe-mə-rə 
ˈfem-rə
1
: the proximal bone of the hind or lower limb that extends from the hip to the knee
called also thigh bone
2
: the segment of an insect's leg that is third from the body
Examples of femur in a Sentence
Recent Examples on the Web
Torres immediately began chemotherapy treatment at Children’s Hospital of Orange County and underwent surgery at Ronald Reagan UCLA Medical Center to remove her femur and part of her hip, replacing them with a titanium rod.
—
Jenelyn Russo, Oc Register, 27 May 2026
In his case, too much time spent on the ice during his growth years and puberty caused extra bone to lay down on the end of the neck of the femur just before its head.
—Scott Wheeler, New York Times, 22 May 2026
Based on the dimensions of its humerus and femur, the corresponding hind leg bone, the researchers estimated Nagatitan’s body mass at 25 to 28 tons.
—Reuters, NBC news, 15 May 2026
The hospital found that the baby had a skull fracture, irreversible brain bleeding, numerous retinal hemorrhages, and a fractured femur.
—Christa Swanson, CBS News, 1 May 2026
See All Example Sentences for femur
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Jenelyn Russo, Oc Register, 27 May 2026
In his case, too much time spent on the ice during his growth years and puberty caused extra bone to lay down on the end of the neck of the femur just before its head.
—Scott Wheeler, New York Times, 22 May 2026
Based on the dimensions of its humerus and femur, the corresponding hind leg bone, the researchers estimated Nagatitan’s body mass at 25 to 28 tons.
—Reuters, NBC news, 15 May 2026
The hospital found that the baby had a skull fracture, irreversible brain bleeding, numerous retinal hemorrhages, and a fractured femur.
—Christa Swanson, CBS News, 1 May 2026
See All Example Sentences for femur
Cite this Entry
“Femur.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/femur. Accessed 28 May. 2026.
Copy CitationKids Definition
femur
noun
fe·mur
ˈfē-mər
plural femurs or femora
ˈfem-(ə-)rə
1
: the long bone of the hind or lower limb extending from the hip to the knee
called also thighbone
2
: the segment of an insect's leg that is third from the body
femoral
adjective
ˈfem-(ə-)rəl
Medical Definition
femur
noun
fe·mur
ˈfē-mər
plural femurs or femora
ˈfem-(ə-)rə
1
: the proximal bone of the hind or lower limb that is the longest and largest bone in the human body, extends from the hip to the knee, articulates above with the acetabulum by a rounded head connected with the shaft of the bone by an oblique neck bearing a pair of trochanters for the attachment of muscles, and articulates with the tibia below by a pair of condyles
called also thigh bone
2
: the segment of an insect's leg that is third from the body
Love words? Need even more definitions?
Merriam-Webster unabridged
