sesamoid

noun
ses·​a·​moid | \ ˈse-sə-ˌmȯid How to pronounce sesamoid (audio) \

Definition of sesamoid

: a nodular mass of bone (such as the patella) or cartilage in a tendon especially at a joint or bony prominence

Other Words from sesamoid

sesamoid adjective

Examples of sesamoid in a Sentence

Recent Examples on the Web The possibility remains that guard Norman Powell, sidelined since Feb. 10 with a fractured medial sesamoid bone in his foot, could join them on the practice floor. Andrew Greif, Los Angeles Times, 3 Apr. 2022 The Clippers released a statement saying that Powell fractured the medial sesamoid bone and there is no timetable for his return. Los Angeles Times, 14 Feb. 2022 The 5-year-old mare Moreavino suffered a right front sesamoid fracture on the far turn of the 1-mile fifth race Thursday. Bill Center, San Diego Union-Tribune, 5 Aug. 2021 Though there’s one type of sesamoid bone that almost everyone has: the kneecap. Alex Schwartz, Popular Science, 5 Feb. 2020 Enter the panda’s pseudo-thumb, which is also composed of an enlarged radial sesamoid and cartilaginous extension, and is controlled by the same three muscles as in the aye-aye. National Geographic, 21 Oct. 2019 Further investigation revealed two other muscles are connected to the radial sesamoid, which allow the bone to move in a gripping motion. National Geographic, 21 Oct. 2019 The question is whether the toe injury – a likely sesamoid fracture – will heal or require surgery. Profootballdoc, sandiegouniontribune.com, 27 Feb. 2018 The question is whether the toe injury – a likely sesamoid fracture – will heal or require surgery. Profootballdoc, sandiegouniontribune.com, 27 Feb. 2018 See More

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

First Known Use of sesamoid

circa 1696, in the meaning defined above

History and Etymology for sesamoid

Greek sēsamoeidēs, literally, resembling sesame seed, from sēsamon

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Time Traveler for sesamoid

Time Traveler

The first known use of sesamoid was circa 1696

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Dictionary Entries Near sesamoid

sesamin

sesamoid

sesamol

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Cite this Entry

“Sesamoid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sesamoid. Accessed 5 Jul. 2022.

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More Definitions for sesamoid

sesamoid

adjective
ses·​a·​moid | \ ˈses-ə-ˌmȯid How to pronounce sesamoid (audio) \

Medical Definition of sesamoid

 (Entry 1 of 2)

: of, relating to, or being a nodular mass of bone or cartilage in a tendon especially at a joint or bony prominence the patella is the largest sesamoid bone in the human body

sesamoid

noun

Medical Definition of sesamoid (Entry 2 of 2)

: a sesamoid bone or cartilage

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