diagnose

verb
di·​ag·​nose | \ ˈdī-ig-ˌnōs How to pronounce diagnose (audio) , -ˌnōz, ˌdī-ig-ˈnōs How to pronounce diagnose (audio) , -ˈnōz, -əg- \
diagnosed; diagnosing

Definition of diagnose

transitive verb

1a : to recognize (something, such as a disease) by signs and symptoms The other method of diagnosing gallstones is through an ultrasound examination, which has the advantages of being simple, safe and quick.— G. Timothy Johnson Pulmonary embolus was diagnosed in two of the actively treated patients …— Richard D. Sautter et al.
b : to recognize a disease or condition in The physicist and cosmologist was diagnosed with Lou Gehrig's disease when he was a 21-year-old student at Cambridge University.— Maria Cheng
2 : to analyze the cause or nature of The mechanic diagnosed the problem with the engine.

intransitive verb

: to identify a disease from its signs and symptoms : to make a diagnosis

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Other Words from diagnose

diagnosable or diagnoseable \ ˌdī-​ig-​ˈnō-​sə-​bəl How to pronounce diagnose (audio) , -​əg-​ , -​zə-​ \ adjective

Examples of diagnose in a Sentence

The test is used to help in diagnosing heart disease. Thousands of new cases have been diagnosed in the past year. The doctor was unable to diagnose the skin condition. a new doctor with little experience diagnosing patients The mechanic was unable to diagnose the problem.
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Recent Examples on the Web The now-18-year-old from Riyadh, Saudi Arabia, had laser-like focus on an extracurricular passion project: Creating a video-game tool to help diagnose teenagers with generalized anxiety disorder. Lila Thulin, Smithsonian Magazine, 26 Aug. 2021 Many of the participants had undergone overnight polysomnography, a sleep study that records certain body functions as participants sleep and is used to diagnose sleep disorders. Kristen Rogers, CNN, 22 Sep. 2021 Rapid tests first emerged at the beginning of the pandemic and have been used on a regular basis to diagnose individuals with COVID-19. Madalyn Amato, Los Angeles Times, 10 Sep. 2021 In the absence of a diagnostic phenotype, major phenotypes also can be used to diagnose rosacea, if two or more are present. Washington Post, 7 Sep. 2021 So theoretically, thermography could be used to diagnose thyroid tumors and hyperthyroidism. Dr. Keith Roach, oregonlive, 24 Aug. 2021 So coronavirus tests are most helpful when used to diagnose someone who has symptoms of the infection or for widespread frequent testing alongside other public health measures, like getting vaccinated, wearing masks, and social distancing. Sarah Jacob, SELF, 6 July 2021 For example, a system used by doctors to diagnose disease should be more accurate than one recommending music. Khari Johnson, Wired, 22 June 2021 Once the gap is identified, other tools, such as a customized 360 assessment, can be used to diagnose the reasons for the gap. Expert Panel®, Forbes, 18 May 2021

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

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First Known Use of diagnose

circa 1841, in the meaning defined at transitive sense 1a

History and Etymology for diagnose

back-formation from diagnosis

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Time Traveler for diagnose

Time Traveler

The first known use of diagnose was circa 1841

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Dictionary Entries Near diagnose

diaglyphic

diagnose

diagnosis

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Statistics for diagnose

Last Updated

15 Oct 2021

Cite this Entry

“Diagnose.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diagnose. Accessed 26 Oct. 2021.

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More Definitions for diagnose

diagnose

verb

English Language Learners Definition of diagnose

: to recognize (a disease, illness, etc.) by examining someone
: to recognize a disease, illness, etc., in (someone)
: to find the cause of (a problem)

diagnose

verb
di·​ag·​nose | \ ˈdī-əg-ˌnōs How to pronounce diagnose (audio) \
diagnosed; diagnosing

Kids Definition of diagnose

: to recognize (as a disease) by signs and symptoms The test is used for diagnosing strep throat.

diagnose

verb
di·​ag·​nose | \ ˈdī-ig-ˌnōs How to pronounce diagnose (audio) , -ˌnōz How to pronounce diagnose (audio) , ˌdī-ig-ˈ, -əg- \
diagnosed; diagnosing

Medical Definition of diagnose

transitive verb

1 : to recognize (as a disease) by signs and symptoms
2 : to diagnose a disease or condition in diagnosed the patient

Other Words from diagnose

diagnosable also diagnoseable \ ˌdī-​ig-​ˈnō-​sə-​bəl, -​əg-​, -​zə-​ How to pronounce diagnose (audio) \ adjective

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