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somnambulate

American  
[som-nam-byuh-leyt, suhm-] / sɒmˈnæm byəˌleɪt, səm- /

verb (used without object)

somnambulated, somnambulating

  1. to walk during sleep; engage in sleepwalking.

somnambulate British  
/ sɒmˈnæmbjʊˌleɪt /

verb

  1. (intr) to walk while asleep

"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

Other Word Forms

  • somnambulance noun
  • somnambulant adjective
  • somnambulation noun
  • somnambulator noun

Etymology

Origin of somnambulate

First recorded in 1825–35; somn(i-) ( def. ) + ambulate

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.