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
Paleontologists discovered most of the pelvis, vertebrae from the trunk and tail, some ribs, neck fragments, and parts of the femur and fibula.
—
Joshua Rapp Learn, Discover Magazine, 30 Sep. 2024
These are located on the inside of your thigh, spanning from your femur (or thigh bone) up to your pelvis.
—Houston Mitchell, Los Angeles Times, 1 Oct. 2024
Another possible flute from Slovenia, made from a cave bear femur, was dated to over 50,000 years ago and is suggested to have been made by Neanderthals.
—Smithsonian Magazine, Smithsonian Magazine, 18 Oct. 2024
Within what felt like a heartbeat, my father collapsed and broke his femur, as a result of a heart that didn’t beat often enough.
—Peter Ubel, Forbes, 17 Oct. 2024
See all Example Sentences for femur 
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Joshua Rapp Learn, Discover Magazine, 30 Sep. 2024
These are located on the inside of your thigh, spanning from your femur (or thigh bone) up to your pelvis.
—Houston Mitchell, Los Angeles Times, 1 Oct. 2024
Another possible flute from Slovenia, made from a cave bear femur, was dated to over 50,000 years ago and is suggested to have been made by Neanderthals.
—Smithsonian Magazine, Smithsonian Magazine, 18 Oct. 2024
Within what felt like a heartbeat, my father collapsed and broke his femur, as a result of a heart that didn’t beat often enough.
—Peter Ubel, Forbes, 17 Oct. 2024
See all Example Sentences for femur
Dictionary Entries Near femur
Cite this Entry
“Femur.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/femur. Accessed 28 Nov. 2024.
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
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