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
Then in January 2023, police discovered a human femur.
—
David Chiu, People.com, 25 June 2025
Archaeologists also found that thrushes' skeletons were missing large, meatier bones like femurs and humeri.
—Andrea Margolis, FOXNews.com, 23 June 2025
Williams left the bar next and, according to a witness, exchanged words with Martin.
Martin, using Smith’s car as cover, opened fire on Williams, who was hit in the thigh and suffered a broken femur.
—Edmund H. Mahony, Hartford Courant, 6 June 2025
One patient was transported to Bayfront Hospital with a femur fracture and another with unknown injuries, NBC reported, citing an Orlando Health spokesperson.
—Mark Weinstein, MSNBC Newsweek, 28 Apr. 2025
See All Example Sentences for femur
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David Chiu, People.com, 25 June 2025
Archaeologists also found that thrushes' skeletons were missing large, meatier bones like femurs and humeri.
—Andrea Margolis, FOXNews.com, 23 June 2025
Williams left the bar next and, according to a witness, exchanged words with Martin.
Martin, using Smith’s car as cover, opened fire on Williams, who was hit in the thigh and suffered a broken femur.
—Edmund H. Mahony, Hartford Courant, 6 June 2025
One patient was transported to Bayfront Hospital with a femur fracture and another with unknown injuries, NBC reported, citing an Orlando Health spokesperson.
—Mark Weinstein, MSNBC Newsweek, 28 Apr. 2025
See All Example Sentences for femur
Cite this Entry
“Femur.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/femur. Accessed 20 Jul. 2025.
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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