diagnose

[ dahy-uhg-nohs, -nohz, dahy-uhg-nohs, -nohz ]

verb (used with object)

, di·ag·nosed, di·ag·nos·ing.

1. to determine the identity of (a disease, illness, etc.) by a medical examination:

   The doctor diagnosed the illness as influenza.

2. to ascertain the cause or nature of (a disorder, malfunction, problem, etc.) from the symptoms:

   The mechanic diagnosed the trouble that caused the engine knock.

3. to classify or determine on the basis of scientific examination.

verb (used without object)

, di·ag·nosed, di·ag·nos·ing.

1. to make a diagnosis.

diagnose

/ ˈdaɪəɡˌnəʊz /

verb

1. to determine or distinguish by diagnosis
2. tr to examine (a person or thing), as for a disease

Derived Forms

• ˌdiagˈnosable, adjective

Other Words From

• diag·nosa·ble adjective
• under·diag·nose verb (used with object) underdiagnosed underdiagnosing
• undi·ag·nosa·ble adjective
• un·diag·nosed adjective
• well-diag·nosed adjective

Word History and Origins

Origin of diagnose¹

First recorded in 1860–65; back formation from diagnosis

Example Sentences

Teal died in North Carolina after being diagnosed in April with Stage 4 neuroendocrine pancreatic cancer, his agent Susan Tolar Walters said in a statement to The Times.

From Los Angeles Times

In 2017, he revealed he had been diagnosed with a form of leukaemia.

From BBC

He was previously beatified - attributed his first miracle - in 2020, the healing of a Brazilian child diagnosed with a congenital disease.

From BBC

“When complete, it could transform the ways we diagnose, monitor and treat diseases,” she said.

From BBC

The researchers found that adults diagnosed with type 2 diabetes at younger ages were at increased risk for developing dementia, compared to those diagnosed at 70 years or older.

From Science Daily

Related Words

• analyze
• determine
• investigate
• pinpoint
• pronounce
• recognize