nihilistic delusion

noun

Medical Definition of nihilistic delusion

: the belief that oneself, a part of one's body, or the real world does not exist or has been destroyed

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“Nihilistic delusion.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/nihilistic%20delusion. Accessed 14 Apr. 2021.

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