psychosis
noun
psy·cho·sis
sī-ˈkō-səs 
plural psychoses
sī-ˈkō-ˌsēz
: a serious mental illness (such as schizophrenia) characterized by defective or lost contact with reality often with hallucinations or delusions
Examples of psychosis in a Sentence
The patient suffers from some kind of psychosis.
Recent Examples on the Web
Some are faced with a more lethal and rare diagnosis: postpartum psychosis.
—
Theara Coleman, theweek, 18 Oct. 2024
Such reasoning often derives from depression rather than psychosis, though some clinicians are reluctant to draw a categorical distinction.
—Eren Orbey, The New Yorker, 14 Oct. 2024
The psychosis is like one of the three doors in the folk tales, the one that must never be opened no matter what.
—Lizz Schumer, People.com, 2 Oct. 2024
His accusers, some of whom sought medical treatment, reported such side effects as hallucinations and psychosis.
—Janelle Griffith, NBC News, 12 Sep. 2024
See all Example Sentences for psychosis 
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Theara Coleman, theweek, 18 Oct. 2024
Such reasoning often derives from depression rather than psychosis, though some clinicians are reluctant to draw a categorical distinction.
—Eren Orbey, The New Yorker, 14 Oct. 2024
The psychosis is like one of the three doors in the folk tales, the one that must never be opened no matter what.
—Lizz Schumer, People.com, 2 Oct. 2024
His accusers, some of whom sought medical treatment, reported such side effects as hallucinations and psychosis.
—Janelle Griffith, NBC News, 12 Sep. 2024
See all Example Sentences for psychosis
Dictionary Entries Near psychosis
Cite this Entry
“Psychosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/psychosis. Accessed 28 Nov. 2024.
Copy CitationKids Definition
psychosis
noun
psy·cho·sis
sī-ˈkō-səs
plural psychoses
-ˈkō-ˌsēz
: a serious mental illness marked by loss of or greatly lessened ability to test whether what one is thinking and feeling about the real world is really true
Medical Definition
psychosis
noun
psy·cho·sis
sī-ˈkō-səs
plural psychoses
-ˌsēz
: a serious mental illness (as schizophrenia) characterized by defective or lost contact with reality often with hallucinations or delusions
Love words? Need even more definitions?
Merriam-Webster unabridged
Share