Meaning of “neurosis” in the English Dictionary

british dictionary

"neurosis" in British English

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neurosisnoun [ C or U ]

uk /njʊəˈrəʊ.sɪs/ us /nʊˈroʊ.sɪs/ plural neuroses

a mental illness resulting in high levels of anxiety, unreasonable fears and behaviour and, often, a need to repeat actions for no reason:

If you want my opinion, I think she's suffering from some form of neurosis.
She's obsessively clean - it's almost become a neurosis with her.

(Definition of “neurosis” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"neurosis" in American English

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neurosisnoun [ C ]

us /nʊˈroʊ·sɪs/ plural neuroses /nʊˈroʊˌsiz/

(Definition of “neurosis” from the Cambridge Academic Content Dictionary © Cambridge University Press)