fe·​mur | \ˈfē-mər \
plural femurs or femora\ ˈfe-​mə-​rə , ˈfem-​rə \

Definition of femur 

1 : the proximal bone of the hind or lower limb that extends from the hip to the knee

called also thighbone

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

The femur, which stops replacing collagen usually in early adulthood, suggested a diet primarily of fish, typical of Iron Gates foragers. Mark Barna, Discover Magazine, "When Farmers and Foragers First Met," 24 Oct. 2018 Together, these two movements keep the femur, or thigh bone, situated in the pelvis at the right angle for the gluteus maximus to do its thing. K. Aleisha Fetters, SELF, "Why You Should Do Butt Exercises Before Your Next Run," 31 July 2018 Scientists working near the Industrial Canal discovered a human femur bone Wednesday afternoon (May 9), according to initial police reports. Hanna Krueger, NOLA.com, "Scientists find human femur bone near Industrial Canal: NOPD," 10 May 2018 Now beef femurs, neck bones and knuckles spend 20 hours in a pot, riddled by fennel and coriander seeds. Ligaya Mishan, New York Times, "At Em, the Noodle Soup Anchors a Menu (and a Marriage)," 17 May 2018 The titanosaur’s femur alone could encase a full grown human male. Steve Johnson, chicagotribune.com, "Giant new Máximo is loaded into Field Museum, taking the place of Sue," 23 May 2018 The condition occurs when the head of the femur slips on the growth plate of the hip, causing pain, spasms and limited range of motion. Erin Blakemore, Washington Post, "Surgeons are using 3-D-printed organs to figure out the best way to operate," 11 June 2018 Scalise still needs either crutches or a cane to get around after having nine surgeries to repair his pelvis, hip and left femur left shattered by bullets, CNN reported. Natalie Dreier, ajc, "Rep. Steve Scalise to return to field one year after Congressional Baseball shooting," 14 June 2018 The victim sustained an open fracture to one of his femurs, but the injury was not considered life-threatening, Delimitros said. Alex Riggins, sandiegouniontribune.com, "Pedestrian struck, injured in City Heights," 7 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'femur.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of femur

circa 1726, in the meaning defined at sense 1

History and Etymology for femur

New Latin femor-, femur, from Latin, thigh

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Statistics for femur

Last Updated

13 Nov 2018

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Time Traveler for femur

The first known use of femur was circa 1726

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English Language Learners Definition of femur

medical : the long bone in the upper part of the leg


fe·​mur | \ˈfē-mər \
plural femurs or femora\ ˈfe-​mə-​rə \

Kids Definition of femur

: the long leg bone that extends from the hip to the knee


fe·​mur | \ˈfē-mər \
plural femurs or femora\ ˈfem-​(ə-​)rə \

Medical Definition of femur 

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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