psychosis

noun
🔊/saɪˈkəʊsɪs/
🔊/saɪˈkəʊsɪs/
[countable, uncountable]
(plural psychoses
🔊/saɪˈkəʊsiːz/
🔊/saɪˈkəʊsiːz/
)
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  1. a serious mental illness that makes a person lose contact with reality精神病 see also psychoticTopics Illnessc2
    Word Originmid 19th cent.: from Greek psukhōsis ‘animation’, from psukhoō ‘I give life to’, from psukhē ‘soul, mind’.