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misdiagnose

American  
[mis-dahy-uhg-nohs, -nohz, mis-dahy-uhg-nohs, -nohz] / mɪsˈdaɪ əgˌnoʊs, -ˌnoʊz, ˌmɪs daɪ əgˈnoʊs, -ˈnoʊz /

verb (used without object)

misdiagnosed, misdiagnosing
  1. to make an incorrect diagnosis.


verb (used with object)

misdiagnosed, misdiagnosing
  1. to diagnose erroneously.

    to misdiagnose the nation's ills.

misdiagnose British  
/ ˌmɪsˈdaɪəɡˌnəʊz /

verb

  1. to diagnose (an illness or problem) wrongly or mistakenly

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of misdiagnose

First recorded in 1925–30; mis- 1 + diagnose

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"It's a rare illness, it's hard to diagnose and easier to misdiagnose," he adds.

From BBC • May 6, 2026

“We have to be careful not to misdiagnose economic weakness,” Macklem said.

From The Wall Street Journal • Feb. 5, 2026

There are situations in which doctors can misdiagnose people with TB.

From Los Angeles Times • Mar. 25, 2024

Doctors in emergency rooms misdiagnose conditions like stroke and sepsis in tens of thousands of patients each year, according to a new study.

From New York Times • Dec. 21, 2022

This difference may help explain why clinicians sometimes misdiagnose women who have bipolar disorder with depression.

From Seattle Times • Sep. 16, 2022

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