hemophilia A


: the common form of hemophilia that is caused by a deficiency of factor VIII compare hemophilia b

Examples of hemophilia A in a Sentence

Recent Examples on the Web Researchers have found ways to alter or turn off disease-causing genes in leukemia, hemophilia A, spinal muscular atrophy, Duchenne muscular dystrophy, and other diseases. Isabella Cueto, STAT, 10 July 2023 The Food and Drug Administration on Thursday approved a gene therapy to treat people with hemophilia A, an inherited and rare bleeding disorder. Adam Feuerstein, STAT, 29 June 2023 About 15 to 20 percent have hemophilia B while the rest have hemophilia A, which is caused by low levels of another protein known as factor VIII. Jonathan Saltzman, BostonGlobe.com, 29 Jan. 2023 Hemgenix is the first such treatment for hemophilia and several other drugmakers are working on gene therapies for the more common form of the disorder, hemophilia A.. Matthew Perrone, Fortune, 23 Nov. 2022

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Word History

First Known Use

1954, in the meaning defined above

Time Traveler
The first known use of hemophilia A was in 1954

Dictionary Entries Near hemophilia A

Cite this Entry

“Hemophilia A.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hemophilia%20A. Accessed 2 Dec. 2023.

Medical Definition

hemophilia A

: the common form of hemophilia caused by a deficiency of factor VIII in the blood
Some boys with hemophilia A are endangered by any bump or scrape, while others have such mild forms that the disorder goes undetected until they lose their first tooth.Science News
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