[ sleep-waw-king ]
/ ˈslipˌwɔ kɪŋ /


the act or state of walking, eating, or performing other motor acts while asleep, of which one is unaware upon awakening; somnambulism.


of or relating to the state of walking while asleep; somnambulistic.

Origin of sleepwalking

First recorded in 1790–1800; sleep + walking

OTHER WORDS FROM sleepwalking

sleep·walk·er, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for sleepwalker

Medicine definitions for sleepwalker

[ slēpwô′kĭng ]


The act of walking or performing another activity associated with wakefulness while asleep or in a sleeplike state.noctambulism somnambulism

Other words from sleepwalking

sleepwalk′ v.sleepwalk′er n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.