What does "psychosis" mean?

A severe mental disorder, sometimes with physical damage to the brain, marked by a deranged personality and a distorted view of reality.

How do you pronounce "psychosis"?

Pronounced //saɪˈkəʊsɪs//.

Common synonyms include: abulia, arteriosclerotic psychosis, brain disease, certifiability, collective mania, crack up.

/saɪˈkəʊsɪs/ noun

noun ·Uncommon ·College level

Noun

1
A severe mental disorder, sometimes with physical damage to the brain, marked by a deranged personality and a distorted view of reality. countable, uncountable
"Manganism has been known about since the 19th century, when miners exposed to ores containing manganese[…]began to totter, slur their speech and behave like someone inebriated. The poisoning was irreversible, and soon ended in psychosis and death."
2
any severe mental disorder in which contact with reality is lost or highly distorted wordnet

"Fortunately, I have never succumbed to the psychosis they call love."

From psych- + -osis or from Ancient Greek ψύχωσις (psúkhōsis, “animation, principle of life”).