misdiagnosis

noun

mis·​di·​ag·​no·​sis ˌmis-ˌdī-ig-ˈnō-səs How to pronounce misdiagnosis (audio)
-əg-
plural misdiagnoses ˌmis-ˌdī-ig-ˈnō-ˌsēz How to pronounce misdiagnosis (audio)
-əg-
: an incorrect diagnosis
Misdiagnosis can easily occur unless the veterinarian is alert to the possibility of Lyme disease.Suzanne Clothier et al.
The court also stated that experts can be sued for negligence resulting from their misdiagnoses.Mark Hansen

Examples of misdiagnosis in a Sentence

Recent Examples on the Web
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These are nonspecific symptoms that often lead to misdiagnosis with other illnesses such as influenza, malaria or typhoid fever. Katia Hetter, CNN Money, 24 Sep. 2025 Despite the misdiagnosis, she was advised to get a chemical peel. Gina Vaynshteyn, StyleCaster, 24 Sep. 2025 In the United States, approximately four hundred thousand people die every year as a result of misdiagnosis. Alexis Kayser, MSNBC Newsweek, 24 Sep. 2025 The National Alliance on Mental Health said barriers to services based on socioeconomic backgrounds, stigmas surrounding mental health and provider bias can cause inequalities in care and lead to misdiagnosis or people not receiving care at all. Jade Jackson, IndyStar, 6 Sep. 2025 See All Example Sentences for misdiagnosis

Word History

First Known Use

1884, in the meaning defined above

Time Traveler
The first known use of misdiagnosis was in 1884

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Cite this Entry

“Misdiagnosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/misdiagnosis. Accessed 1 Oct. 2025.

Medical Definition

misdiagnosis

noun
mis·​di·​ag·​no·​sis (ˌ)mis-ˌdī-ig-ˈnō-səs How to pronounce misdiagnosis (audio)
plural misdiagnoses -ˌsēz How to pronounce misdiagnosis (audio)
: an incorrect diagnosis
Last Updated: - Updated example sentences
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