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noctambulism

or noc·tam·bu·la·tion

[nok-tam-byuh-liz-uh m or nok-tam-byuh-ley-shuh n]
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noun
  1. somnambulism.

Origin of noctambulism

First recorded in 1855–60; noctambul(ous) + -ism
Related formsnoc·tam·bu·list, noc·tam·bule [nok-tam-byool] /nɒkˈtæm byul/, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for noctambulist

noctambulism

noctambulation (nɒkˌtæmbjʊˈleɪʃən)

noun
  1. another word for somnambulism
Derived Formsnoctambulist, noun

Word Origin

C19: from Latin nox night + ambulāre to walk
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noctambulist in Medicine

noctambulism

(nŏk-tămbyə-lĭz′əm)
n.
  1. sleepwalking