psychosis

noun
psy·​cho·​sis | \ sī-ˈkō-səs How to pronounce psychosis (audio) \
plural psychoses\ sī-​ˈkō-​ˌsēz How to pronounce psychosis (audio) \

Definition of psychosis

: 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 If the person suffering from psychosis refused at any point to participate, their criminal case would proceed. Heather Knight, San Francisco Chronicle, 3 Mar. 2022 Other moments played to the psychosis of the tragedy — one set piece being a long corridor with a door at the end of it with a dagger for a knob. Daron James, Los Angeles Times, 12 Jan. 2022 But according to expert witnesses, no evidence of split personality disorder or Satanic rituals were ever found, and Rolling was not suffering from psychosis. Michelle Delgado, Smithsonian Magazine, 29 Oct. 2021 Spencer’s came back positive for psilocin — a substance found in mushrooms that White said could cause psychosis — but also for fentanyl, a powerful synthetic opioid, Jubas said. Washington Post, 30 Mar. 2022 Prednisone has worked wonders in stabilizing my inflammation markers, but that relief comes at a steep cost in the form of side effects like insomnia, hair loss, psychosis, bone loss, and more. Samantha Reid, Allure, 24 Mar. 2022 But the doctor truly believed after their first hour-long session that Shepley didn't really intend to kill anyone, and that his acute paranoid psychosis — his official diagnosis — could be cured with the right combination of therapy and medication. Caitlin Keating, PEOPLE.com, 6 Jan. 2022 In other cases, this relationship persists because many people predisposed to psychosis are similarly predisposed to using cannabis. Nr Editors, National Review, 3 Mar. 2022 Multiple psychologists told the Associated Press the theory is no support for the psychosis theory. Allison Morrow, CNN, 1 Feb. 2022 See More

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

First Known Use of psychosis

1847, in the meaning defined above

History and Etymology for psychosis

New Latin

Learn More About psychosis

Time Traveler for psychosis

Time Traveler

The first known use of psychosis was in 1847

See more words from the same year

Dictionary Entries Near psychosis

psychosexuality

psychosis

psychosocial

See More Nearby Entries 

Statistics for psychosis

Last Updated

30 Apr 2022

Cite this Entry

“Psychosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/psychosis. Accessed 23 May. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for psychosis

psychosis

noun
psy·​cho·​sis | \ sī-ˈkō-səs How to pronounce psychosis (audio) \
plural psychoses\ -​ˌsēz How to pronounce psychosis (audio) \

Medical Definition of psychosis

: a serious mental illness (as schizophrenia) characterized by defective or lost contact with reality often with hallucinations or delusions

WORD OF THE DAY

Test Your Vocabulary

Which Word Does Not Belong?

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!