noctambulous

or noc·tam·bu·lant

[nok-tam-byuh-luh s or nok-tam-byuh-luh nt]

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adjective

of, relating to, or given to sleepwalking.

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Also noc·tam·bu·lis·tic.

Origin of noctambulous

1725–35; noct- + Latin ambul(āre) to walk + -ous

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018