: a disorder of connective tissue that is inherited as a dominant trait and is characterized by abnormal elongation of the long bones and often by ocular and circulatory defects

Examples of Marfan syndrome in a Sentence

Recent Examples on the Web
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Connective tissue disorders such as Marfan syndrome and Loeys-Dietz syndrome make people vulnerable, while Turner syndrome and other genetic disorders affecting the aorta and aortic valve, place people at high risk of developing an enlarged aorta. Elizabeth Cooney, STAT, 15 July 2026 In Grant's heart tissue, the lab found a variant in FBN1, the gene behind Marfan syndrome. Dr. Céline Gounder, CBS News, 13 July 2026 People with Marfan syndrome, for instance, are at a higher risk for aortic dissections. Veronique Greenwood, Time, 13 July 2026 He was diagnosed with a disease called Marfan syndrome, which generally involves mutations in a gene that helps build connective tissue in the body. Roxanne Khamsi, The Atlantic, 7 July 2026 See All Example Sentences for Marfan syndrome

Word History

Etymology

Antonin Bernard Jean Marfan †1942 French pediatrician

First Known Use

circa 1923, in the meaning defined above

Time Traveler
The first known use of Marfan syndrome was circa 1923

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Cite this Entry

“Marfan syndrome.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Marfan%20syndrome. Accessed 19 Jul. 2026.

Medical Definition

Marfan syndrome

noun
: a disorder of connective tissue that is inherited as a simple dominant trait, is caused by a defect in the gene controlling the production of fibrillin, and is characterized by abnormal elongation of the long bones and often by ocular and circulatory defects

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